LEASES - As Lessee - Ground Lease and Office Lease (Details)	3 Months Ended
Mar. 31, 2024 USD ($) item	Mar. 31, 2023 USD ($)
Real Estate in Greensboro, NC
Lessee Accounting
Operating lease, renewal term	5 years
Operating lease, option to extend	true
Operating lease, remaining lease term	5 years 10 months 24 days
Real Estate in Greensboro, NC \| Real estate expenses
Lessee Accounting
Operating lease expense \| $	$ 122,000	$ 150,000
Real Estate in Greensboro, NC \| Five-Year Lease
Lessee Accounting
Operating lease, renewal term	5 years
Real Estate in Greensboro, NC \| Five-Year Lease \| Maximum
Lessee Accounting
Operating lease, number of renewal options \| item	4
Real Estate in Greensboro, NC \| Seven-Month Lease
Lessee Accounting
Operating lease, number of renewal options \| item	1
Operating lease, renewal term	7 months
Corporate office lease in Great Neck, NY
Lessee Accounting
Operating lease, option to extend	true
Operating lease, remaining lease term	12 years 9 months 18 days
Corporate office lease in Great Neck, NY \| General and administrative expense
Lessee Accounting
Operating lease expense \| $	$ 14,000	$ 14,000
Corporate office lease in Great Neck, NY \| Five-Year Lease
Lessee Accounting
Operating lease, renewal term	5 years

The number of renewal options available to the Company, as defined in the lease agreement.

No definition available.

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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

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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- Details

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