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LEASES - As Lessee - Ground Lease and Office Lease (Details) | 12 Months Ended
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Dec. 31, 2022 USD ($) item | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Lessee Accounting |  |  |
Operating lease liability | $ 6,924,000 |  |
Operating lease liability, Statement of Financial Position | Accrued expenses and other liabilities |  |
Right-of-use asset | $ 5,864,000 |  |
Operating lease, right-of-use asset, Statement of Financial Position | Escrow, deposits and other assets and receivables |  |
Real Estate in Greensboro, NC |  |  |
Lessee Accounting |  |  |
Operating lease liability | $ 6,366,000 | $ 6,634,000 |
Right-of-use asset |  | 6,267,000 |
Operating lease, remaining lease term | 12 years 2 months 12 days |  |
Operating lease, incremental borrowing rate (as a percent) | 2.95% |  |
Real Estate in Greensboro, NC | Real estate expenses |  |  |
Lessee Accounting |  |  |
Operating lease expense | $ 599,000 | 599,000 | $ 533,000
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 | $ 558,000 | 578,000 |
Right-of-use asset | $ 535,000 | 564,000 |
Operating lease, remaining lease term | 14 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 | $ 55,000 | $ 57,000

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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 No definition available. + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918631-209977 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918631-209977 + Details
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