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LEASES - As Lessee - Ground Lease and Office Lease (Details) | 12 Months Ended
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Dec. 31, 2023 USD ($) item | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Lessee Accounting |  |  |
Operating lease liability | $ 3,363,000 |  |
Operating lease liability, Statement of Financial Position | Accrued expenses and other liabilities |  |
Real Estate in Greensboro, NC |  |  |
Lessee Accounting |  |  |
Operating lease liability | $ 2,827,000 | $ 6,366,000 |
Operating lease liability, Statement of Financial Position | Accrued expenses and other liabilities |  |
Right-of-use asset | $ 2,246,000 | 5,864,000 |
Operating lease, right-of-use asset, Statement of Financial Position | Escrow, deposits and other assets and receivables |  |
Operating lease, remaining lease term | 6 years 2 months 12 days |  |
Operating lease, incremental borrowing rate (as a percent) | 6.91% |  |
Operating lease expense | $ 544,000 | 599,000 | $ 599,000
Real Estate in Greensboro, NC | Five-Year Lease |  |  |
Lessee Accounting |  |  |
Operating lease, number of renewal options | item | 4 |  |
Operating lease, renewal term | 5 years |  |
Operating lease, option to extend | true |  |
Real Estate in Greensboro, NC | Seven-Month Lease |  |  |
Lessee Accounting |  |  |
Operating lease, number of renewal options | item | 1 |  |
Operating lease, renewal term | 7 months |  |
Operating lease, option to extend | true |  |
Corporate office lease in Great Neck, NY |  |  |
Lessee Accounting |  |  |
Operating lease, renewal term | 5 years |  |
Operating lease, option to extend | true |  |
Operating lease liability | $ 536,000 | 558,000 |
Operating lease liability, Statement of Financial Position | Accrued expenses and other liabilities |  |
Right-of-use asset | $ 505,000 | 535,000 |
Operating lease, right-of-use asset, Statement of Financial Position | Escrow, deposits and other assets and receivables |  |
Operating lease, remaining lease term | 13 years |  |
Operating lease, incremental borrowing rate (as a percent) | 3.81% |  |
Corporate office lease in Great Neck, NY | General and administrative expense |  |  |
Lessee Accounting |  |  |
Operating lease expense | $ 56,000 | $ 56,000 | $ 55,000

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- Definition The number of renewal options available to the Company, as defined in the lease agreement. + References No definition available. + Details
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- 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 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Discount rate used by lessee to determine present value of operating lease payments. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Indicates (true false) whether lessee has option to extend operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-4 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
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- Definition Indicates line item in statement of financial position that includes operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-2 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
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- Definition Indicates line item in statement of financial position that includes operating lease right-of-use asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-2 + Details
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