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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.

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Amount of the required periodic payments including both interest and principal payments.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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No definition available.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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DEBT AND CREDIT ARRANGEMENTS - Narrative (Details) - USD ($)		3 Months Ended		6 Months Ended
	Jun. 13, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Mortgage payable to affiliate
Debt Instrument
Interest rate (as a percent)		5.00%		5.00%
Monthly interest and principal installments				$ 16,000
Long-term debt		$ 836,000		836,000		$ 907,000
Current portion of long-term debt with affiliate		148,000		148,000		$ 144,000
Note payable to Squadron
Debt Instrument
Interest expense		$ 11,000	$ 12,000	$ 22,000	$ 25,000
Revolving Credit Facility \| Fourth Amended Loan Agreement
Debt Instrument
Revolving credit facility	$ 50,000,000
Interest rate (as a percent)	10.00%
Unused commitment fee percentage (as a percent)	0.50%
Revolving Credit Facility \| Fourth Amended Loan Agreement \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument
Debt instrument, basis spread on variable rate (as a percent)	8.69%
Revolving Credit Facility \| Fourth Amended Loan Agreement \| Three Month LIBOR
Debt Instrument
Debt instrument, basis spread on variable rate (as a percent)	8.61%