Document And Entity Information Other receivables Note To Financial Statement Details Textual Significant Accounting Policies Note 5 - Estimated Liquidation and Operating Costs Net of Estimated Receipts Note 6 - Loans Payable Note 7 - Accounts Payable and Accrued Liabilities Note 11 - Commitments Note 15 - Related Party Transactions Note 5 - Estimated Liquidation and Operating Costs Net of Estimated Receipts - Changes in Liability for Estimated Costs in Excess of Estimated Receipts (Details) Other Employees [Member] Information pertaining to individuals classified as other employees. Note 6 - Loans Payable - Loan Maturity (Details) Note 7 - Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Details) Income Tax Disclosure [Text Block] Note 11 - Commitments - Other Commitments (Details) Note 11 - Commitments - Allocation of Retention Bonus (Details) Note 15 - Related Party Transactions - Summary of Leasing Arrangements (Details) Notes To Financial Statements Notes To Financial Statements [Abstract] Schedule of Maturities of Long-Term Debt [Table Text Block] Earnings Per Share, Policy [Policy Text Block] Effect of Covid-19 Pandemic [Text Block] The entire disclosure for effects of COVID-19 pandemic. gyro_PaymentForRetentionBonusPlan Payment for Retention Bonus Plan The cash outflow during the period from the payment for the Retention Bonus Plan. Customer 1 [Member] Customer 2 [Member] Customer 3 [Member] Cash Transferred From Signature Bank to Signature Bridge Bank [Member] Represents cash that was transferred from signature bank to signature bride bank. Federal Home Loan Bank Rate [Member] Related to the interest rate from the Federal Home Loan Bank. US Treasury (UST) Interest Rate [Member] us-gaap_AssetsNet Net Assets Net assets in liquidation Net assets in liquidation, as of December 31, 2022 Net assets in liquidation, as of March 31, 2023 gyro_DeferredCompensationArrangementFixedInterestRate Deferred Compensation Arrangement Fixed Interest Rate Represents the deferred compensation arrangement, fixed interest rate. Accrued liabilities Statistical Measurement [Domain] Maximum [Member] Minimum [Member] Current accounts payable gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnCommonAreaExpenditures Capital expenditures Amount of gain (loss) from remeasurement of common area expenditures to dispose of assets or other items expected to be sold in liquidation. Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Statistical Measurement [Axis] Capital expenditures Capital expenditures gyro_LiquidationBasisOfAccountingCommonAreaExpenditures Amount of estimated common area expenditures to dispose of assets or other items expected to be sold in liquidation. us-gaap_LiquidationBasisOfAccountingRemeasurementGainLossOnAccruedCostsToDisposeOfAssetsAndLiabilities Liability for estimated liquidation and operating costs net of estimated receipts Credit Facility [Axis] Credit Facility [Domain] Capital expenditures gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnAssetCommonAreaExpenditures Amount of gain (loss) from remeasurement of common area expenditure to reflect the change in value under liquidation basis. us-gaap_PolicyTextBlockAbstract Accounting Policies Liability for estimated liquidation and operating costs net of estimated receipts Liability for estimated liquidation and operating costs net of estimated receipts Estimated liquidation and operating costs net of estimated receipts Liquidation Basis of Accounting, Accrued Costs to Dispose of Assets and Liabilities Geographical [Axis] Geographical [Domain] Liquidation Basis of Accounting [Text Block] gyro_DebtInstrumentCovenantMinimumDebtServiceCoverageRatio Debt Instrument, Covenant, Minimum Debt Service Coverage Ratio The minimum debt service coverage ratio under the covenant of the debt instrument. gyro_LiquidationBasisOfAccountingCommonStockPerShareNet Liquidation Basis of Accounting, Common Stock Per Share, Net (in dollars per share) Represents the common stock per share that is expected to be distributed in liquidation, net of any special distributions made. Schedule of Allocation of Bonus Pool Percentage [Table Text Block] Tabular disclosure of allocation of bonus pool percentage under deferred compensation arrangement. gyro_DebtInstrumentCovenantMaximumLoanToValueRatioOfTheProperty Debt Instrument, Covenant, Maximum Loan to Value Ratio of the Property The maximum percentage of loan to value ratio of the property under the covenant of the debt instrument. Customer [Axis] Customer [Domain] LIABILITIES: us-gaap_Assets Total Assets Commitments Disclosure [Text Block] Statement [Line Items] us-gaap_OperatingLeaseLeaseIncome Operating Lease, Lease Income gyro_DebtInstrumentExtensionTerm Debt Instrument, Extension Term (Year) The extension term of a debt instrument. Board of Directors Chairman [Member] Chief Operating Officer [Member] us-gaap_EscrowDeposit Escrow Deposit Chief Executive Officer [Member] Fair Value Disclosures [Text Block] ASSETS: us-gaap_Liabilities Total Liabilities gyro_MaximumValueOfAssetToEffectDissolution Maximum Value of Asset to Effect Dissolution The maximum value where in the Amended and restated limited liability company agreement may effect dissolution upon the majority common interest or boards discretion. us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits Supplemental Unemployment Benefits, Severance Benefits The Corporation [Member] Represents Gyrodyne Company of America Inc. Lease Term April Through December 2022 [Member] Related to lease. Tenant security deposits payable Counterparty Name [Axis] Counterparty Name [Domain] Controlled by Parent Company [Member] The properties controlled by the parent company. Deferred Compensation to Directors (b) Contingencies Disclosure [Text Block] Total accounts payable Accounts payable Long-Term Debt, Type [Axis] us-gaap_AccruedLiabilitiesCurrentAndNoncurrent Accrued liabilities Total, accrued liabilities Long-Term Debt, Type [Domain] Officer [Member] Liquidation Basis of Accounting [Policy Text Block] The policy disclosure of accounting basis used when liquidation is deemed imminent. Lease Term March 2022 Through December 2027 [Member] Represents a lease with a term from March 2022 through December 2027. gyro_EscalatorsAndAgreementsPercentage Escalators and Agreements, Percentage Represents the percentage related to escalators and agreements. Cortlandt Manor Medical Center [Member] Represents information about Cortlandt Manor Medical Center. Scenario [Domain] Deferred accounts payable (a) Forecast [Member] Title of Individual [Domain] Title of Individual [Axis] Scenario [Axis] gyro_BelowMarketLeaseTotalCommitmentToBeReceived Below Market Lease, Total Commitment to be Received The total commitment to be received of the below market lease. Cortlandt, New York [Member] Represents Cortlandt, New York. Deferred rent liability Other 4 Directors [Member] Other 4 members serving on the board of directors. Related Party Transactions Disclosure [Text Block] gyro_BelowMarketLeaseAnnualRent Below Market Lease, Annual Rent The annual rent of the below market lease. Schedule of Related Party Transactions [Table Text Block] Remeasurement of assets and liabilities Amount of gain (loss) from re-measurement of assets, net of liabilities, to reflect the change in value under liquidation basis. Collateral Held [Domain] Extended Term Loan [Member] Represents the extended term loan. gyro_RetentionBonusPlanInternalRateOfReturn Retention Bonus Plan, Internal Rate of Return (in dollars per share) Represents the internal rate of return. If Maturity Date Is Extended [Member] Represents if maturity date is extended. Equity Components [Axis] Equity Component [Domain] Board Members and Employees [Member] Related to the board members, employees, or both. us-gaap_LongTermDebt Total Collateral Held [Axis] Bonus Payable [Member] Other commitments for bonus payables. us-gaap_RealEstateHeldforsale Real estate held for sale Annual Rent The annual rent in a leasing arrangement. Rental Income [Member] Represents rental income. us-gaap_DebtInstrumentTerm Debt Instrument, Term (Year) Small Businesses and Not-for-Profit Corporations [Member] Information related to small businesses and not-for-profit corporations. Loans payable Long-term Line of Credit, Total Flowerfield Properties, Inc. [Member] The name or description of the legal entity. us-gaap_RealEstateTaxExpense Real Estate Tax Expense Cash and cash equivalents Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Cash and Cash Equivalents, Policy [Policy Text Block] gyro_DirectorFeesDeferredPercentage Director Fees, Deferred, Percentage The percentage of director fees that deferred. gyro_LiquidationBasisOfAccountingLandEntitlementCostsIncurredAmountDeferred Liquidation Basis of Accounting, Land Entitlement Costs Incurred, Amount Deferred Amount of estimated land entitlement costs that have been deferred. Document Quarterly Report Amendment Flag Entity Incorporation, State or Country Code Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Document Transition Report City Area Code gyro_RegulatoryFees Regulatory Fees Represents regulatory fees. Use of Estimates, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Concentration Risk Disclosure [Text Block] Entity Interactive Data Current us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearFour 2027 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearFive 2028 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingAfterYearFive Thereafter Security Exchange Name us-gaap_CommonStockSharesOutstanding Common Stock, Shares, Outstanding, Ending Balance (in shares) us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextRollingTwelveMonths 2024 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearTwo 2025 Title of 12(b) Security us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingYearThree 2026 Current Fiscal Year End Date us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 Debt Instrument, Basis Spread on Variable Rate us-gaap_DebtInstrumentInterestRateStatedPercentage Debt Instrument, Interest Rate, Stated Percentage Basis of Accounting [Text Block] gyro_OwnershipPercentage Ownership Percentage Percentage of ownership of outstanding stock in the company. Document Fiscal Period Focus gyro_LiquidationBasisOfAccountingNetIncreaseDecreaseInLiquidationValuePerShare Liquidation Basis of Accounting, Net Increase (Decrease) in Liquidation Value Per Share (in dollars per share) Net increase (decrease) in liquidation value per share used to offset liquidating distributions paid. gyro_NumberOfCandidatesForElection Number of Candidates for Election The number of candidates for election. Document Fiscal Year Focus Consolidation, Policy [Policy Text Block] Star Equity Fund, LP [Member] Represents Star Equity Fund, LP. gyro_BonusPoolFundingAsPercentageOfAppraisedValueOfContributedProperties Bonus Pool Funding as Percentage of Appraised Value of Contributed Properties Represents the amount of bonus pool funding expressed as a percentage of the specified appraised value of each of the Contributed Properties. Document Period End Date Retail Use [Member] Represents retail use. Medical Use [Member] Represents medical use. Entity File Number us-gaap_DebtInstrumentFeeAmount Debt Instrument, Fee Amount gyro_AdditionalBonusPoolFundingPercentageOfGrossSalesPriceOnFirstTenPercentOfPropertyAppreciation Additional Bonus Pool Funding, Percentage of Gross Sales Price on First Ten Percent Of Property Appreciation Represents gross sales price of a property in excess of its appraised value expressed as a percentage and used for additional bonus pool funding. Entity Emerging Growth Company us-gaap_DebtInstrumentFaceAmount Debt Instrument, Face Amount Document Type gyro_AdditionalBonusPoolFundingPercentageOfGrossSalesPriceOnSecondTenPercentOfPropertyAppreciation Additional Bonus Pool, Funding Percentage of Gross Sales Price on Second Ten Percent of Property Appreciation Represents gross sales price of a property in excess of its appraised value expressed as a percentage and used for additional bonus pool funding. Real Estate, Type of Property [Axis] gyro_AdditionalBonusPoolFundingPercentageOfGrossSalesPriceOnPropertyAppreciationGreaterThanTwentyPercent Additional Bonus Pool Funding, Percentage of Gross Sales Price on Property Appreciation Greater than Twenty Percent Represents gross sales price of a property in excess of its appraised value expressed as a percentage and used for additional bonus pool funding. Entity Small Business Real Estate [Domain] Entity Shell Company gyro_BonusPoolDistributionProportions Bonus Pool Distribution Proportions Percentage of bonus distributable to certain individuals. Document Information [Line Items] Document Information [Table] Square Feet (Acre) Area of Real Estate Property (Square Foot) Executives and Employees [Member] Persons serving the company in operating activities. Entity Filer Category Debt Instrument [Axis] Entity Current Reporting Status Debt Instrument, Name [Domain] Name of Property [Axis] Name of Property [Domain] Multi-Tenant Industrial Park [Member] Information related to the Multi-Tenant Industrial Park. St. James, New York [Member] Variable Rate [Domain] Total commitment Rent receivable us-gaap_NumberOfRealEstateProperties Number of Real Estate Properties Management Employment Agreements with Bonus and Severance Commitment Contingencies [Member] Information pertaining to employment agreements with bonus and severance commitment contingencies. Other Employee Severance Commitment Contingencies [Member] Information pertaining to other employee severance commitment contingencies. Variable Rate [Axis] gyro_LiquidationBasisOfAccountingLandEntitlementCostsIncurred Liquidation Basis of Accounting, Land Entitlement Costs Incurred Amount of land entitlement costs to dispose of assets or other items expected to be sold in liquidation recognized in the period. us-gaap_ConcentrationRiskPercentage1 Concentration Risk, Percentage Entity Tax Identification Number gyro_LiquidationBasisOfAccountingLandEntitlementCosts Liquidation Basis of Accounting, Land Entitlement Costs Amount of estimated land entitlement costs to dispose of assets or other items expected to be sold in liquidation. Entity Central Index Key Entity Registrant Name Credit Concentration Risk [Member] gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnAccruedLandEntitlementCosts Land entitlement costs Amount of gain (loss) from remeasurement of estimated accrued land entitlement costs to dispose of assets or other items expected to be sold in liquidation. Land entitlement costs Land entitlement costs gyro_LiquidationBasisOfAccountingAccruedLandEntitlementCosts Amount of estimated accrued land entitlement costs to dispose of assets or other items expected to be sold in liquidation. Entity [Domain] Customer Concentration Risk [Member] Legal Entity [Axis] Non-revolving Credit Line 2 [Member] Related to a second non-revolving line of credit. Statement [Table] Entity Address, Address Line One Statement of Financial Position [Abstract] Land entitlement costs gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnLiabilityLandEntitlementCosts Amount of gain (loss) from remeasurement of land entitlement costs to reflect the change in value under liquidation basis. Accounts Payable and Accrued Liabilities Disclosure [Text Block] Entity Address, City or Town Entity Address, Postal Zip Code Business Acquisition [Axis] Entity Address, State or Province Business Acquisition, Acquiree [Domain] Concentration Risk Type [Axis] us-gaap_AllowanceForDoubtfulAccountsReceivable Accounts Receivable, Allowance for Credit Loss, Ending Balance Concentration Risk Type [Domain] Entity Common Stock, Shares Outstanding Lease Contractual Term [Domain] Statement of Stockholders' Equity [Abstract] Lease Contractual Term [Axis] us-gaap_RepaymentsOfDebt Repayments of Debt Trading Symbol Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Liability for estimated liquidation and operating costs net of estimated receipts gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnLiability Amount of gain (loss) from re-measurement of liabilities to reflect the change in value under liquidation basis. Change in liquidation value of real estate Amount of change in real estate to reflect the change in value under liquidation basis. Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Local Phone Number us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity Line of Credit Facility, Remaining Borrowing Capacity us-gaap_TableTextBlock Notes Tables gyro_LiquidationBasisOfAccountingCommonStockPerShare Liquidation Basis of Accounting, Common Stock Per Share (in dollars per share) Represents the common stock per share that is expected to be distributed in liquidation. Contractual obligation Other Commitment, Total Liquidation Basis of Accounting, Liability for Estimated Costs in Excess of Receipts [Text Block] The entire disclosure for liability for estimated costs in excess of receipts during liquidation. Term Loan [Member] Information related form the term loan. Liquidation Basis of Accounting, Change in Liability for Estimated Costs in Excess of Estimated Receipts [Table Text Block] Tabular disclosure for the change in liability for estimated costs in excess of estimated receipts on the liquidation basis of accounting. us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity Line of Credit Facility, Maximum Borrowing Capacity Non-revolving Credit Line [Member] Related to a non-revolving line of credit. Property operating costs Property operating costs gyro_LiquidationBasisOfAccountingAccruedPropertyOperatingExpenses Amount of estimated accrued property operating expenses to dispose of assets or other items expected to be sold in liquidation. gyro_LiquidationBasisOfAccountingAccruedRentAndReimbursements Estimated rents and reimbursements Estimated rents and reimbursements Amount of estimated accrued rent and reimbursements to dispose of assets or other items expected to be sold in liquidation. Related Party, Type [Axis] Corporate expenditures Corporate expenditures gyro_LiquidationBasisOfAccountingAccruedCorporateExpenditures Amount of estimated accrued corporate expenditures to dispose of assets or other items expected to be sold in liquidation. gyro_DeferredAmountOnFutureLandEntitlementCosts Deferred Amount on Future Land Entitlement Costs Represents deferred amount on future land entitlement costs. Related Party, Type [Domain] us-gaap_AreaOfLand Area of Land (Acre) Other Commitments [Table Text Block] Selling costs on real estate assets** Selling costs on real estate assets** gyro_LiquidationBasisOfAccountingAccruedRealEstateSellingCosts Amount of estimated accrued real estate selling costs to dispose of assets or other items expected to be sold in liquidation. Other Commitments [Axis] gyro_LiquidationBasisOfAccountingPrepaidExpensesAndOtherAssets Prepaid expenses and other assets Prepaid expenses and other assets Amount of prepaid expenses and other assets in the liquidation basis of accounting. Other Commitments [Domain] Retention bonus payments to directors, officers and employees** Retention bonus payments to directors, officers and employees** gyro_LiquidationBasisOfAccountingAccruedRetentionBonusPaymentsToExecutivesAndOtherEmployees Amount of estimated accrued retention bonus payments to executive and other employees to dispose of assets or other items expected to be sold in liquidation. Flowerfield Industrial Park [Member] Related to the Flowerfield Industrial Park. Real Estate Securing Mortgage Loan [Member] Related to the real estate securing a mortgage loan. After Interest Only Payment Period [Member] Related to the period where principal and interest payments are made on the debt. gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnAccruedInvestmentOfRealEstate Estimated rents and reimbursements Amount of gain (loss) from remeasurement of estimated accrued investment of real estate to dispose of assets or other items expected to be sold in liquidation. Board Members [Member] Related to members of the board. Bonus pool percentage The percentage amount of the discretionary bonus pool applicable to certain defined benefit plans. gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnAccruedPropertyOperatingCosts Property operating costs Amount of gain (loss) from remeasurement of estimated accrued property operating costs to dispose of assets or other items expected to be sold in liquidation. Net decrease in liquidation value Liquidation Basis of Accounting, Net Increase (Decrease) in Liquidation Value The net increase or decrease in liquidation value during the current period. gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnAccruedCorporateExpenditures Corporate expenditures Amount of gain (loss) from remeasurement of estimated accrued corporate expenditures to dispose of assets or other items expected to be sold in liquidation. us-gaap_CashFDICInsuredAmount Cash, FDIC Insured Amount gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnAccruedSellingCostsOnRealEstateAssets Selling costs on real estate assets** Amount of gain (loss) from remeasurement of estimated accrued selling costs on real estate assets to dispose of assets or other items expected to be sold in liquidation. gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnAccruedRetentionBonusPaymentsToExecutivesAndOtherEmployees Retention bonus payments to directors, officers and employees** Amount of gain (loss) from remeasurement of estimated accrued retention bonus payments to executives and other employees to dispose of assets or other items expected to be sold in liquidation. Asset Pledged as Collateral [Member] gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnAssetInvestmentOfRealEstate Estimated rents and reimbursements Amount of gain (loss) from remeasurement of investment in real estate to reflect the change in value under liquidation basis. gyro_LiquidationBasisOfAccountingIncreaseDecreaseInPrepaidExpensesAndOtherAssets Prepaid expenses and other assets Amount of increase (decrease) in prepaid expenses, and assets classified as other in a liquidation basis of accounting. Property operating costs gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnLiabilityPropertyOperatingCosts Amount of gain (loss) from remeasurement of property operating costs to reflect the change in value under liquidation basis. Corporate expenditures gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnLiabilityCorporateExpenditures Amount of gain (loss) from remeasurement of corporate expenditures to reflect the change in value under liquidation basis. Selling costs on real estate assets** gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnLiabilitySellingCostsOnRealEstateAssets Amount of gain (loss) from remeasurement of selling costs on real estate assets to reflect the change in value under liquidation basis. Retention bonus payments to directors, officers and employees** gyro_LiquidationBasisOfAccountingRemeasurementGainLossOnLiabilityRetentionBonusPaymentsToExecutivesAndOtherEmployees Amount of gain (loss) from remeasurement of retention bonus payments to executives and other employees to reflect the change in value under liquidation basis. Debt Disclosure [Text Block] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Pledged Status [Domain] Pledged Status [Axis] Not-for-profit Corporation [Member] Represents a not-for-profit organization. us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements Subsequent Event [Member] Non-revolving Credit Line 3 [Member] Related to a third non-revolving line of credit. Class of Stock [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] gyro_DebtInstrumentAmortizationPeriod Debt Instrument, Amortization Period (Year) The amortization period of the debt instrument. Basis of Accounting, Liquidation [Member] Related to liquidation basis of accounting.