Advisory Agreement, Board Of Directors' Approval Percentage

No definition available.

Name:	nycr_AdvisoryAgreementBoardOfDirectorsApprovalPercentage
Namespace Prefix:	nycr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Advisory Agreement, Renewal Term

+ References

No definition available.

+ Details

Name:	nycr_AdvisoryAgreementRenewalTerm
Namespace Prefix:	nycr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period Prior To Expiration Date Needed To Terminate Agreement

+ References

No definition available.

+ Details

Name:	nycr_PeriodPriorToExpirationDateNeededToTerminateAgreement
Namespace Prefix:	nycr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Property Management Agreement, Term

+ References

No definition available.

+ Details

Name:	nycr_PropertyManagementAgreementTerm
Namespace Prefix:	nycr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Property Management Agreement, Term Of Extension

+ References

No definition available.

+ Details

Name:	nycr_PropertyManagementAgreementTermOfExtension
Namespace Prefix:	nycr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Property Management Agreement, Termination Notice Period

+ References

No definition available.

+ Details

Name:	nycr_PropertyManagementAgreementTerminationNoticePeriod
Namespace Prefix:	nycr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Administrative and Overhead Expenses

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionAdministrativeandOverheadExpenses
Namespace Prefix:	nycr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related Party Transaction, Asset Cost

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionAssetCost
Namespace Prefix:	nycr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related Party Transaction, Asset Management Fee, Percentage of Benchmark

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionAssetManagementFeePercentageofBenchmark
Namespace Prefix:	nycr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Base Asset Management Fee

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionBaseAssetManagementFee
Namespace Prefix:	nycr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related party transaction, operating expenses as a percentage of benchmark, fee cap

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionOperatingExpensesAsPercentageOfBenchmark
Namespace Prefix:	nycr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Related Party Transaction, Property Management Fees Earned by Related Party, Percentage of Benchmark

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionPropertyManagementFeesEarnedByRelatedPartyPercentageOfBenchmark
Namespace Prefix:	nycr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Related Party Transaction, Termination Fee

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionTerminationFee
Namespace Prefix:	nycr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related Party Transaction, Termination Fee, Multiplier

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionTerminationFeeMultiplier
Namespace Prefix:	nycr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Related Party Transaction, Variable Asset Management, Fee Earned By Related Party

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionVariableAssetManagementFeeEarnedByRelatedParty
Namespace Prefix:	nycr_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Variable Asset Management Fee Earned By Related Party, Percentage Of Benchmark

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionVariableAssetManagementFeeEarnedByRelatedPartyPercentageOfBenchmark
Namespace Prefix:	nycr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Wage and Benefit Expenses

+ References

No definition available.

+ Details

Name:	nycr_RelatedPartyTransactionWageandBenefitExpenses
Namespace Prefix:	nycr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.6-05(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-2

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-09(4)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(16)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-09(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3

+ Details

Name:	us-gaap_CommonStockSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of expense for investment management fee, including, but not limited to, expense in connection with research, selection, supervision, and custody of investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
-SubTopic 830
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479168/946-830-55-10

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479105/946-220-45-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 850
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

+ Details

Name:	us-gaap_ManagementFeeExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

+ Details

Name:	us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-3

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-13

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

+ Details

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_ProfessionalFeesAndOtherReimbursementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=nycr_NewYorkCityReitAdvisorsLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_PropertyManagementFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_ReimbursementOfCostsAndExpensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=nycr_AmericanStrategicInvestmentCoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=nycr_BellevueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	nycr_RelatedPartyAgreementAxis=nycr_TheSecondAdvisoryAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_TheSecondAdvisoryAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_TheSecondAdvisoryAgreementCoreEarningsPerAdjustedShareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_PropertyManagementFeesGrossRevenueStandAloneSingleTenantNetLeasedPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_ReimbursementOfCostsAndExpensesAdministrativeAndOverheadMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_ReimbursementOfCostsAndExpensesWageAndBenefitExpensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_TerminationPriorToJune302020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_TerminationAfterJune302020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_ActualBaseManagementFeeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=nycr_ActualVariableManagementFeeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions and Arrangements - Narrative (Details) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended				6 Months Ended
	Apr. 13, 2018	Mar. 31, 2024 USD ($)	Jun. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2025 USD ($) $ / shares shares	Jun. 30, 2024 USD ($)	Dec. 31, 2024 shares	Mar. 29, 2024	Jun. 29, 2020
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares) \| shares			2,634,355				2,634,355		2,634,355
Renewal term							5 years
Period prior to expiration date needed to terminate agreement							180 days
Related party transaction, amount			$ 2,676		$ 3,005		$ 6,179	$ 6,300
Professional Fees and Other Reimbursements
Related Party Transaction [Line Items]
Related party transaction, amount			995		1,078		2,629	2,470
New York City Reit Advisors, LLC \| Property Management Fees
Related Party Transaction [Line Items]
Related party transaction, amount			200		400		500	800
New York City Reit Advisors, LLC \| Reimbursement of Costs and Expenses
Related Party Transaction [Line Items]
Related party transaction, amount			$ 1,000		900		$ 2,600
American Strategic Investment Co. \| Bellevue
Related Party Transaction [Line Items]
Ownership percentage			59.00%				59.00%		54.40%
Related Party
Related Party Transaction [Line Items]
Common stock, shares outstanding (in shares) \| shares			536,252				536,252		536,252
Management fee expense			$ 1,500		1,500		$ 3,000	$ 3,000
Renewal basis percentage							66.00%
Related Party \| New York City Reit Advisors, LLC \| The Second Advisory Agreement
Related Party Transaction [Line Items]
Related party transaction, termination fee							$ 15,000
Related Party \| New York City Reit Advisors, LLC \| The Second Advisory Agreement
Related Party Transaction [Line Items]
Base asset management fee as a percentage of benchmark							$ 500
Asset management fee, percentage of benchmark							1.25%
Variable management fee as a percentage of benchmark							10.00%
Related Party \| New York City Reit Advisors, LLC \| The Second Advisory Agreement \| Performance-Based Equity Award
Related Party Transaction [Line Items]
Variable management fee as a percentage of benchmark							15.00%
Related Party \| New York City Reit Advisors, LLC \| The Second Advisory Agreement \| Minimum
Related Party Transaction [Line Items]
Dividend to common stockholders (in dollars per share) \| $ / shares							$ 0.05
Related Party \| New York City Reit Advisors, LLC \| The Second Advisory Agreement, Core Earnings Per Adjusted Share
Related Party Transaction [Line Items]
Variable management fee (in dollars per share) \| $ / shares							0.1944
Related Party \| New York City Reit Advisors, LLC \| The Second Advisory Agreement, Core Earnings Per Adjusted Share \| Performance-Based Equity Award
Related Party Transaction [Line Items]
Variable management fee (in dollars per share) \| $ / shares							$ 0.1458
Related Party \| New York City Reit Advisors, LLC \| Gross Revenue, Stand-alone Single-tenant Net Leased Properties
Related Party Transaction [Line Items]
Percentage of management fees earned	4.00%									3.25%
Related party initial term	1 year
Related party extended initial term	1 year
Other related parties terminate notice period	60 days
Related Party \| New York City Reit Advisors, LLC \| Reimbursement of Costs and Expenses
Related Party Transaction [Line Items]
Related party transaction related to administrative and overhead expenses			200		100		$ 800
Related party transactions related to salaries, wages and benefits			$ 800		$ 800		1,800
Related Party \| New York City Reit Advisors, LLC \| Reimbursement of Costs and Expenses \| Maximum
Related Party Transaction [Line Items]
Related party transaction related to administrative and overhead expenses							400
Asset cost							$ 1,250,000
Related party transactions related to salaries, wages and benefits		$ 3,000		$ 3,000		$ 2,600
Related Party \| New York City Reit Advisors, LLC \| Reimbursement of Administrative and Overhead Expenses \| Maximum
Related Party Transaction [Line Items]
Operating expenses as a percentage of benchmark			0.10%				0.10%
Related Party \| New York City Reit Advisors, LLC \| Reimbursement of Wage and Benefit Expenses \| Maximum
Related Party Transaction [Line Items]
Operating expenses as a percentage of benchmark			0.30%				0.30%
Related Party \| New York City Reit Advisors, LLC \| Termination Prior to June 30, 2020 \| The Second Advisory Agreement
Related Party Transaction [Line Items]
Termination fee multiplier											3
Related Party \| New York City Reit Advisors, LLC \| Termination After June 30, 2020 \| The Second Advisory Agreement
Related Party Transaction [Line Items]
Termination fee multiplier											4
Related Party \| New York City Reit Advisors, LLC \| Actual Base Management Fee \| The Second Advisory Agreement
Related Party Transaction [Line Items]
Termination fee multiplier											12
Related Party \| New York City Reit Advisors, LLC \| Actual Variable Management Fee \| The Second Advisory Agreement
Related Party Transaction [Line Items]
Termination fee multiplier											4