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Deferred tax assets Deferred Income Tax Assets, Net Total Long-Term Debt, Gross Number of renewal options Debt Instrument, Number Of Renewal Options Debt Instrument, Number Of Renewal Options Entity Address, Postal Zip Code Entity Address, Postal Zip Code Right-of-use assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding 2024 Long-Term Debt, Maturity, Year Two Greenidge Blocker Corp Greenidge Blocker Corp [Member] Greenidge blocker corp. Debt Instrument [Axis] Debt Instrument [Axis] Property and equipment, gross Property, Plant and Equipment, Gross Issuance of shares for investor fee associated with successful completion of Merger (in shares) Stock Issued During Period Shares for investor fee associated Merger Stock Issued During Period Shares for investor fee associated Merger Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Debt instrument, fair value Debt Instrument, Fair Value Disclosure 8.50% Senior Secured Notes Due 2026 Eight Point Five Senior Secured Notes Due Two Thousand Twenty Six [Member] Eight Point Five Senior Secured Notes Due Two Thousand Twenty Six [Member] Additional paid-in capital Additional Paid in Capital Financial Instruments [Domain] Financial Instruments [Domain] Other long-term assets Other Long Term Assets Other long term assets. Emissions and carbon offset credits Emissions and Carbon Offset Credits Emissions and carbon offset credits. 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Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] CASH FLOW FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from sale of preferred stock, net of stock issuance costs/Shares issued to Support.com shareholders upon Merger, net of issuance costs Stock Issued During Period, Value, New Issues Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Document Type Document Type Weighted Average Exercise Price Per Share Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Estimated useful lives Property, Plant and Equipment, Useful Life Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] RSUs Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Unvested, beginning balance (in dollars per share) Unvested, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value DEBT Debt Disclosure [Text Block] Total Members' Capital Member Units [Member] Conversion of preferred stock Stock Issued During Period, Value, Conversion of Units Product and Service [Domain] Product and Service [Domain] Product and Service [Domain] Entity Shell Company Entity Shell Company Common Class B Common Class B [Member] Deferred income taxes Deferred Income Tax Expense (Benefit) Accrued expenses Increase (Decrease) in Accrued Liabilities 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Sales Revenue Net Revenue Benchmark [Member] Consolidation Items [Domain] Consolidation Items [Domain] Subsequent Event Subsequent Event [Member] Document Period End Date Document Period End Date Share-Based Payment Arrangement, Tranche One Share-Based Payment Arrangement, Tranche One [Member] Purchases of and deposits for property and equipment Payments To Acquire Property And Equipment Payments to acquire property and equipment. Aggregate principal loan amount Secured Debt, Current Total assets Assets Debt Disclosure [Abstract] Debt Disclosure [Abstract] Loss per share: Earnings Per Share [Abstract] Earnings Per Share [Abstract] Miner Equipment Note B Miner Equipment Note B [Member] Miner equipment note B. 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Numerator Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Weighted average exercise price per share, exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Net cash flow provided by financing activities Net Cash Provided by (Used in) Financing Activities B Riley B Riley [Member] B Riley [Member] Accounting Policies [Abstract] Accounting Policies [Abstract] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Number of locations where facilities are owned and operated Number Of Locations Where Facilities Are Owned And Operated Number Of Locations Where Facilities Are Owned And Operated Loss before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest STOCKHOLDERS' EQUITY: Stockholders' Equity Attributable to Parent [Abstract] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] EARNINGS PER SHARE Earnings Per Share [Text Block] Customer [Axis] Customer [Axis] Lease obligations, net of current portion Finance Lease, Liability, Noncurrent Transaction costs, after taxes transaction costs after tax transaction costs after tax Related Party Transaction [Line Items] Related Party Transaction [Line Items] Award Type [Domain] Award Type [Domain] Unrecognized compensation cost, period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Remeasurement of environmental liability Gain (Loss) on Extinguishment of Debt Exercisable, weighted average remaining contractual life as of end of period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Finite-lived Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Bitcoin holdings at fair value Other Indefinite-Lived Intangible Assets Greenidge And Noteholder Greenidge And Noteholder [Member] Greenidge And Noteholder [Member] Entity Registrant Name Entity Registrant Name Proceeds from sale of preferred stock, net of stock issuance costs/Shares issued to Support.com shareholders upon Merger, net of issuance costs (in shares) Stock Issued During Period, Shares, New Issues SUBSEQUENT EVENTS Subsequent Events [Text Block] Supplier Concentration Risk Supplier Concentration Risk [Member] Additional common stock issued Additional Common Stock Value Issued Additional Common Stock Value Issued Amended principal amount Amended Principal Amount Amended Principal Amount. Software Software Development [Member] Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities Customer relationships Customer Relationships [Member] Entity Address, City or Town Entity Address, City or Town Other income (loss), net Other Nonrecurring (Income) Expense Accrued emissions expense Accrued Utilities, Current Renewal term Debt Instrument, Renewal Term Debt Instrument, Renewal Term Senior Priority Units Limited Liability Company Senior Priority Unit [Member] Limited Liability Company Senior Priority Unit [Member] Interest expense, net Interest Expenses Interest expenses. Minimum Minimum [Member] Plant infrastructure Plant Infrastructure [Member] Plant infrastructure. Restricted stock unit awards settled in cash for taxes Restricted stock unit awards settled in cash for taxes Restricted stock unit awards settled in cash for taxes Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Maximum aggregate consideration to be received on transaction Sale Of Stock, Maximum Aggregate Consideration To be Received On Transaction Sale Of Stock, Maximum Aggregate Consideration To be Received On Transaction Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Trading Symbol Trading Symbol Entity File Number Entity File Number INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] Empire Empire [Member] Empire [Member] Number of installments to settle share based awards fully vested Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Settled, Number Of Installments Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Settled, Number Of Installments Additional common stock issued (in shares) Additional Common Stock Shares Issued Additional Common Stock Shares Issued Equipment Equipment [Member] Title of Individual [Axis] Title of Individual [Axis] Granted (in shares) Grants in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Resticted Common Stock Unit Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Effective income tax rate as a percentage Effective Income Tax Rate Reconciliation, Percent Net proceeds from new line of credit Proceeds from Lines of Credit Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Miners Miners [Member] Miners. 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Common Stock Common Stock Common Stock [Member] Number of reporting segments Number of Reportable Segments Class of Stock [Axis] Class of Stock [Axis] Statement [Table] Statement [Table] Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Interest rate Debt Instrument, Interest Rate, Effective Percentage Document Quarterly Report Document Quarterly Report Letter of Credit Letter of Credit [Member] CURRENT ASSETS: Assets, Current [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Miner Equipment Note L Equipment Note L [Member] Equipment Note L [Member] One Major Customer One Major Customer [Member] One major customer. Related Party Transaction [Axis] Related Party Transaction [Axis] Accumulated deficit Retained Earnings (Accumulated Deficit) Accounts receivable Accounts Receivable, after Allowance for Credit Loss, Current Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Proceeds from sale of assets Proceeds from Sale of Assets Proceeds from sale of assets. Equity Components [Axis] Equity Components [Axis] Mutual agreement, base salary Mutual Agreement With Individual, Base Salary Mutual Agreement With Individual, Base Salary Proceeds from issuance of private placement Proceeds from Issuance of Private Placement Exercisable, weighted average exercise price per share as of end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Weighted average exercise price per share, expired (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Interest expense, net Interest Income (Expense), Nonoperating, Net Document Fiscal Year Focus Document Fiscal Year Focus Discount on consideration received, triggering event, amount Sale Of Stock, Discount On Consideration Received, Triggering Event, Amount Sale Of Stock, Discount On Consideration Received, Triggering Event, Amount CASH FLOW FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Statement [Line Items] Statement [Line Items] Repayments of lease obligations Finance Lease, Principal Payments Unvested, beginning balance (in shares) Unvested, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Total other expense, net Nonoperating Income (Expense) Chief Strategy Officer Chief Strategy Officer [Member] Chief Strategy Officer Intangible Assets Finite-Lived Intangible Assets, Gross Selling, general and administrative Selling, General and Administrative Expense Members' capital, beginning balance Members' capital, ending balance Members' Capital Accumulated Deficit AOCI Attributable to Parent [Member] Support Services Support Services [Member] Support services. Stock-based compensation Employee Benefits and Share-Based Compensation Document Transition Report Document Transition Report Local Phone Number Local Phone Number Stock Options Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Contribution of GGH Preferred Units, GGH Senior Priority Units, and notes payable to related party for GGHI Common Stock (in shares) Contribution of GGH Preferred Units, GGH Senior Priority Units, and notes payable to related party for GGHI Common Stock (in shares) Number Of Units And Notes Payable Contributed In Exchange For Common Stock Number of units and notes payable contributed in exchange for common stock. Loss from operations Operating income Operating Income (Loss) Recent Accounting Pronouncements, Adopted New Accounting Pronouncements, Policy [Policy Text Block] 2021 Equity Plan Two Thousand And Twenty One Equity Plan [Member] Two Thousand And Twenty One Equity Plan [Member] Supplemental Cash Flow Information Schedule of Noncash or Part Noncash Acquisitions [Table Text Block] Prepaids and other assets Increase (Decrease) in Prepaid Expense and Other Assets Document Information [Table] Document Information [Table] Miner deposits Mining Properties and Mineral Rights [Member] Denominator Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Common stock, outstanding (in shares) Common Stock, Shares, Outstanding Goodwill Goodwill Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Total debt Notes Payable Adjustments to reconcile net loss to net cash flow from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Provision for income taxes Income Tax Expense (Benefit) Product Liability Contingency [Table] Product Liability Contingency [Table] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Income Statement [Abstract] Income Statement [Abstract] Grants in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Long-lived asset impairment Impairment, Long-Lived Asset, Held-for-Use Additional Paid - In Capital Additional Paid-in Capital [Member] Document Fiscal Period Focus Document Fiscal Period Focus Diluted weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment CONCENTRATIONS Concentration Risk Disclosure [Text Block] Maximum class A common stock and class B common stock shares in excess of the exchange cap Maximum Class A Common Stock And Class B Common Stock Shares In Excess Of The Exchange Cap Maximum class A common stock and class B common stock shares in excess of the exchange cap Long-term debt, current portion Less: Current portion Notes Payable, Current Property and equipment purchases financed with common stock Property and equipment purchases financed with common stock Property and equipment purchases financed with common stock Accounts Receivable Accounts Receivable [Member] Accrued emissions Increase Decrease In Accrued Emissions Increase decrease in accrued emissions. Common stock, par value $0.0001, 3,000,000,000 shares authorized, 42,964,462 and 40,865,336 shares issued and outstanding as of September 30, 2022 and December 31, 2021, respectively Common Stock, Value, Issued Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Miner facility infrastructure Miner Facility [Member] Miner facility. Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Preferred Stock Preferred Stock Preferred Stock [Member] Shares issued upon exercise of warrants Shares issued upon Exercise Of Warrants Value Shares issued upon Exercise Of Warrants Value 8.50% Senior Notes due 2026 Senior Notes [Member] Restricted shares award issuance, net of withholdings (in shares) Restricted Stock, Shares Issued Net of Shares for Tax Withholdings Fair market value of the awards granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Fair Value Share based compensation arrangement by share based payment award equity instruments other than options grants in period fair value. Miner Equipment Note A Miner Equipment Note A [Member] Miner equipment note A. Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Short-Term Debt [Line Items] Short-Term Debt [Line Items] Operating Segments Operating Segments [Member] Exercisable, aggregate intrinsic value, as of end of period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Private Placement Private Placement [Member] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] CASH AND CASH EQUIVALENTS - beginning of year CASH AND CASH EQUIVALENTS AND RESTRICTED CASH - end of period Cash and cash equivalents, including restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Emissions and carbon offset credits Increase Decrease In Emissions Credits Or Carbon Offsets Increase Decrease In Emissions Credits Or Carbon Offsets Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Issuance of warrants to advisor in connection with completion of Merger Adjustments to Additional Paid in Capital, Warrant Issued CURRENT LIABILITIES: Liabilities, Current [Abstract] Net loss attributable to Greenidge, basic Net Income (Loss) Available to Common Stockholders, Basic Proceeds from stock options exercised Proceeds from Stock Options Exercised Common stock, issued (in shares) Common Stock, Shares, Issued Concentration Risk [Line Items] Concentration Risk [Line Items] Outstanding, weighted average remaining contractual life as of beginning of period Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Weighted Average Remaining Contractual Term Sharebased compensation arrangement by sharebased payment award options granted in period weighted average remaining contractual term. Foreign currency translation adjustment Foreign Currency Transaction Gain (Loss), before Tax Agreement [Axis] Agreement [Axis] Agreement. Income Statement Location [Domain] Income Statement Location [Domain] Merger and other costs Merger and other costs Business Combination, Acquisition Related Costs Lease obligations, current portion Finance Lease, Liability, Current Amendment Flag Amendment Flag Net cash flow used for investing activities Net Cash Provided by (Used in) Investing Activities Amount Financed Debt instrument, face amount Debt Instrument, Face Amount Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Limited guaranty payment Guarantor Obligations, Current Carrying Value Charge for recognition of valuation allowance Charge For Recognition Of Valuation Allowance Charge For Recognition Of Valuation Allowance Contribution of GGH Common Units for GGHI Common Stock (in shares) Number Of Common Units Contributed In Exchange For Common Stock Number of common units contributed in exchange for common stock. Share-Based Payment Arrangement, Disclosure [Abstract] Share-Based Payment Arrangement, Disclosure [Abstract] MERGER WITH SUPPORT.COM Mergers, Acquisitions and Dispositions Disclosures [Text Block] Information about Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Construction in process Construction in Progress [Member] Impairment of long-lived assets Impairment of Long-Lived Assets to be Disposed of Entity Current Reporting Status Entity Current Reporting Status Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Transaction costs, before taxes business acquisition proforma costs business acquisition proforma costs Exercisable as of end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Chief Executive Officer Chief Executive Officer [Member] Principal payments on debt Repayments of Notes Payable Common Stock Purchase Agreement and Registration Rights Agreement Common Stock Purchase Agreement and Registration Rights Agreement [Member] Common Stock Purchase Agreement and Registration Rights Agreement Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Promissory Note Bridge Promissory Note [Member] Bridge Promissory Note [Member] OPERATING COSTS AND EXPENSES: Operating Costs and Expenses [Abstract] Outstanding, beginning balance (in shares) Outstanding, ending balance (in shares) Number of shares outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Less: Debt discount and issuance costs Unamortized discounts and debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net B. Riley Commercial Capital, LLC B. Riley Commercial Capital, LLC [Member] B. 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Business Acquisition [Line Items] Business Acquisition [Line Items] Entity Small Business Entity Small Business Stockholders' equity, beginning balance (in shares) Stockholders' equity ending balance (in shares) Shares, Outstanding STOCKHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] REVENUE: Revenues [Abstract] Total Finite-Lived Intangible Assets, Net SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Issuance of shares for investor fee associated with successful completion of Merger Stock Issued During Period Value for Investor Fee Associated Merger Stock Issued During Period Value for Investor Fee Associated Merger Unrecognized compensation cost Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Support Com Support.com [Member] Support.com [Member] Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Contribution of GGH Common Units for GGHI Common Stock Value Of Common Units Contributed In Exchange For Common Stock Value of common units contributed in exchange for common stock. Disclosure Of Compensation Related Costs Sharebased Payments [Table] Disclosure Of Compensation Related Costs Sharebased Payments [Table] Disclosure Of Compensation Related Costs Sharebased Payments [Table] Outstanding, aggregate intrinsic value as of beginning period Outstanding, aggregate intrinsic value as of end of period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Accounts receivable Increase (Decrease) in Accounts Receivable Title of 12(b) Security Title of 12(b) Security Operator Customer One Operator Customer [Member] Operator customer. ORGANIZATION AND DESCRIPTION OF BUSINESS Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Miner Equipment Note C Miner equipment note C [Member] Miner equipment note C Consolidated Entities [Axis] Consolidated Entities [Axis] Bonds Bonds [Member] Interest rate Subordinated Borrowing, Interest Rate Short-term investments Short-Term Investments Agreement [Domain] Agreement [Domain] Agreement. Subsequent Event [Line Items] Subsequent Event [Line Items] Debt Instrument [Line Items] Debt Instrument [Line Items] Supplemental Pro Forma Financial Information Business Acquisition Merger and Other Related Costs [Table Text Block] Business acquisition merger and other related costs table text block. Business Combination and Asset Acquisition [Abstract] Class of Stock [Line Items] Class of Stock [Line Items] Greenidge Common Stock Greenidge Common Stock [Member] Greenidge Common Stock [Member] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Selling General And Administrative Expenses Member Selling, General and Administrative Expenses [Member] Underwriter compensation, percentage of gross stock sales Sale Of Stock, Underwriter Compensation, Percentage Of Gross Stock Sales Sale Of Stock, Underwriter Compensation, Percentage Of Gross Stock Sales 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Two Gain (loss) on sale of digital assets Gain (Loss) on Disposition of Other Financial Assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Stock issued to purchase miners (in shares) Stock Issued During Period, Shares, Purchase of Assets Remainder of 2022 Long-Term Debt, Maturity, Remainder of Fiscal Year Reconciliation of Total of Segments Adjusted EBITDA to Consolidated (Loss) Income Before Income Taxes Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block] Net proceeds received Sale of Stock, Consideration Received on Transaction Accounts payable Accounts Payable, Current Common Units Limited Liability Company Common Unit [Member] Limited Liability Company Common Unit [Member] 2026 Long-Term Debt, Maturity, Year Four Entity Filer Category Entity Filer Category Basic weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Proceeds from issuance of common stock, net of issuance costs Proceeds from sale of common stock Proceeds from Issuance of Common Stock Loss on sale of assets Gain (Loss) On Sale Of Assets Gain (Loss) On Sale Of Assets Stock-based compensation expense Share-Based Payment Arrangement, Expense COMMITMENTS AND CONTINGENCIES (NOTE 13) Commitments and Contingencies Security Exchange Name Security Exchange Name Weighted average exercise price per share, beginning balance (in dollars per share) Weighted average exercise price per share, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Purchase commitment, termination notice period Long-Term Purchase Commitment, Termination Notice Period Long-Term Purchase Commitment, Termination Notice Period Loss on sale of assets Gain (Loss) on Disposition of Assets Interest expense - related party Interest Expense, Related Party Preferred stock, par value $0.0001, 20,000,000 shares authorized, none outstanding Preferred Stock, Value, Issued Restricted cash Restricted Cash, Current Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Equipment Financing Agreements Schedule of Debt [Table Text Block] Revenues Revenue from Contract with Customer, Excluding Assessed Tax Short-Term Debt, Type [Domain] Short-Term Debt, Type [Domain] Income taxes payable Increase (Decrease) in Income Taxes Payable Common stock reserved for issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance LONG-TERM LIABILITIES: Liabilities, Noncurrent [Abstract] Cover [Abstract] Cover [Abstract] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction EQUITY BASED COMPENSATION Share-Based Payment Arrangement [Text Block] Members' capital, preferred units, beginning balance (in shares) Members' capital, preferred units, ending balance (in shares) Limited Liability Company (LLC) Preferred Unit, Outstanding Segment Reporting [Abstract] Segment Reporting [Abstract] Cash received in merger Cash Acquired from Acquisition Miner Equipment Note D Miner equipment note D [Member] Miner equipment note D Members' capital, common units, beginning balance (in shares) Members' capital, common units, ending balance (in shares) Common Unit, Outstanding Total liabilities and stockholders' equity Liabilities and Equity Debt term Debt Instrument, Term Amortization of debt issuance costs Amortization of Debt Issuance Costs Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Related Party [Axis] Related Party [Axis] Land Land [Member] Total Segments Adjusted EBITDA (loss) Earning Before Interest Taxes Depreciation and Amortization Earning before interest taxes depreciation and amortization. Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Current Fiscal Year End Date Current Fiscal Year End Date Vesting [Axis] Vesting [Axis] Net loss attributable to Greenidge, diluted Net Income (Loss) Available to Common Stockholders, Diluted Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Diluted (in dollars per share) Earnings Per Share, Diluted Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Sale of Stock [Domain] Sale of Stock [Domain] Share-Based Payment Arrangement, Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Payment of stock issuance costs Issuance costs associated with shares issued for Support acquisition Payments of Stock Issuance Costs Stock-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Consolidation Items [Axis] Consolidation Items [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Total current liabilities Liabilities, Current Customer Concentration Risk Customer Concentration Risk [Member] Purchase commitment period Long-Term Purchase Commitment, Period Preferred Units Limited Liability Company Preferred Unit [Member] Limited Liability Company Preferred Unit [Member] Long-term debt, net of current portion and deferred financing fees Notes Payable, Noncurrent Expansion costs Expansion Costs Expansion costs. Unvested Restricted Common Stock Unit Awards Activity Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Entity Ex Transition Period Entity Ex Transition Period Long-lived asset impairment Other Asset Impairment Charges Cumulative Translation Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Master Equipment Financing Agreement Master Equipment Financing Agreement [Member] Master Equipment Financing Agreement [Member] OTHER EXPENSE, NET: Nonoperating Income (Expense) [Abstract] Proceeds from issuance of preferred stock, net of issuance costs Proceeds from Issuance of Preferred Stock and Preference Stock (Loss) earnings per share Earnings Per Share, Basic, Other Disclosure [Abstract] Entity Address, Address Line Two Entity Address, Address Line Two Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock Contribution of Preferred Units, Senior Priority Units, and Notes Payable to Related Party for Greenidge Class B common stock Contribution of Preferred Units, Senior Priority Units, and notes payable to related party for Greenidge class B common stock. Entity Address, Address Line One Entity Address, Address Line One Cost of revenue Cost of Revenue Environmental liabilities Environmental trust liability Environmental Trust Liability Environmental trust liability. Product and Service [Axis] Product and Service [Axis] Class of Stock [Domain] Class of Stock [Domain] At The Market Issuance Sales Agreement At The Market Issuance Sales Agreement [Member] At The Market Issuance Sales Agreement Interest expense Interest Expense Tradename Trade Names [Member] Investor fee paid in common stock Investor Fee Paid In Common Stock Investor Fee Paid In Common Stock Credit Facility [Axis] Credit Facility [Axis] Subsequent Event [Table] Subsequent Event [Table] Vested (in shares) Vested in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Miner Equipment Note K Miner Equipment Note K [Member] Miner Equipment Note K [Member] Entity Tax Identification Number Entity Tax Identification Number Costs reimbursed costs re-imbursed by related party costs re-imbursed by related party Schedule of Short-Term Debt [Table] Schedule of Short-Term Debt [Table] Support.Com Business Acquisition Support.Com Business Acquisition [Member] Support.Com Business Acquisition [Member] 2022 (for the remainder of) Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Proceeds from debt, net of issuance costs Proceeds from Notes Payable Consolidated Entities [Domain] Consolidated Entities [Domain] Issuance of shares, net of issuance costs (in shares) Stock Issued During Period, Shares, Other Maximum percentage of ownership by investor Sale Of Stock, Maximum, Percentage Of Ownership After Transaction By Investor Sale Of Stock, Maximum, Percentage Of Ownership After Transaction By Investor CHANGE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Less: Net income attributable to the member units before the reorganization Net Income Loss Attributable To The Member Units Before The Reorganization Net income loss attributable to the member units before the reorganization. Entity Central Index Key Entity Central Index Key Miner Equipment Note J Miner Equipment Note J [Member] Miner equipment Note J Member Remeasurement of environmental liability Remeasurement of environmental liability Environmental Liability Remeasurement Environmental Liability Remeasurement Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Conversion of preferred stock (in shares) Stock Issued During Period, Shares, Conversion of Units Shares issued to Support.com shareholders upon Merger Business Combination, Consideration Transferred City Area Code City Area Code ASSETS Assets [Abstract] Other Increase (Decrease) in Other Operating Assets and Liabilities, Net Atlas Atlas [Member] Atlas [Member]. Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Statement of Stockholders' Equity [Abstract] Sale of Stock [Axis] Sale of Stock [Axis] CASH FLOW FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] 2023 Long-Term Debt, Maturity, Year One Percentage of proceeds received from sale of stock to be used to repay debt Debt Conversion, Converted Instrument, Rate Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Issuance of shares, net of issuance costs Stock Issued During Period, Value, Other Other long-term liabilities Other Liabilities, Noncurrent Contribution of GGH Preferred Units, GGH Senior Priority Units, and notes payable to related party for GGHI Common Stock Contribution of GGH Preferred Units, GGH Senior Priority Units, and notes payable to related party for GGHI Common Stock Value Of Units And Notes Payable Contributed In Exchange For Common Stock Value of units and notes payable contributed in exchange for common stock. Power and capacity Power And Capacity [Member] Power and capacity. 2023 Finite-Lived Intangible Asset, Expected Amortization, Year One Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Environmental obligations Accrual for Environmental Loss Contingencies, Payments Miner Equipment Note I Miner Equipment Note I [Member] Miner equipment Note I Member Customer [Domain] Customer [Domain] Cryptocurrency datacenter Cryptocurrency Datacenter and Power Generation Cryptocurrency Mining [Member] Cryptocurrency mining.