DEBT - Debt Activity (Details) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Debt [Roll Forward]
Debt, beginning balance	$ 201,145,000
Debt Issuances & Assumptions	166,230,000
Repayments	(183,392,000)
Accretion & (Amortization)	1,066,000	$ 1,068,000
Amortization of debt discount (premium)	48,000	(61,000)
Accretion & (Amortization)	284,000
Deferred loan costs, ending balance	(2,120,000)
Debt, ending balance	184,267,000	201,145,000
Mortgage Payable
Debt [Roll Forward]
Outstanding, beginning balance	97,100,000
Deferred loan costs, beginning balance	(120,000)
Debt, beginning balance	96,980,000
Accretion & (Amortization)	26,000
Outstanding, ending balance	97,100,000	97,100,000
Deferred loan costs, ending balance	(94,000)	(120,000)
Debt, ending balance	97,006,000	96,980,000
Secured Borrowings - Government Guaranteed Loans
Debt [Roll Forward]
Outstanding, beginning balance	6,671,000
Debt, beginning balance	6,976,000
Premiums (discounts), beginning balance	305,000
Repayments	(692,000)
Amortization of debt discount (premium)	(47,000)
Outstanding, ending balance	5,979,000	6,671,000
Premiums (discounts), ending balance	258,000	305,000
Debt, ending balance	6,237,000	6,976,000
Other Debt
Debt [Roll Forward]
Debt, beginning balance	97,189,000
Debt Issuances & Assumptions	166,230,000
Repayments	(182,700,000)
Accretion & (Amortization)	305,000
Debt, ending balance	81,024,000	97,189,000
Junior subordinated notes
Debt [Roll Forward]
Outstanding, beginning balance	27,070,000
Premiums (discounts), beginning balance	(1,592,000)
Amortization of debt discount (premium)	95,000
Outstanding, ending balance	27,070,000	27,070,000
Premiums (discounts), ending balance	(1,497,000)	(1,592,000)
SBA 7(a) loan-backed notes
Debt [Roll Forward]
Outstanding, beginning balance	7,670,000
Repayments	(7,670,000)
Outstanding, ending balance	0	7,670,000
Deferred debt issuance costs — other
Debt [Roll Forward]
Deferred loan costs, beginning balance	(989,000)
Accretion & (Amortization)	210,000
Deferred loan costs, ending balance	(779,000)	(989,000)
Revolving Credit Facility \| Line of Credit \| 2018 revolving credit facility
Debt [Roll Forward]
Outstanding, beginning balance	60,000,000
Debt Issuances & Assumptions	110,000,000
Repayments	(170,000,000)
Outstanding, ending balance	0	60,000,000
Revolving Credit Facility \| Line of Credit \| 2022 credit facility revolver
Debt [Roll Forward]
Outstanding, beginning balance	0
Debt Issuances & Assumptions	0
Repayments	0
Outstanding, ending balance	0	0
Revolving Credit Facility \| Line of Credit \| Paycheck Protection Program Liquidity Facility, CARES Act
Debt [Roll Forward]
Repayments	(5,030,000)
Outstanding, ending balance	0
2022 credit facility term loan \| Line of Credit
Debt [Roll Forward]
Outstanding, beginning balance	0
Debt Issuances & Assumptions	56,230,000
Repayments	0
Outstanding, ending balance	56,230,000	$ 0
2022 credit facility term loan \| Line of Credit \| 2022 credit facility revolver
Debt [Roll Forward]
Outstanding, ending balance	$ 56,200,000

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of amortization expense attributable to debt issuance costs.

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Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

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Amount of short-term and long-term debt and lease obligation.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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