DEBT - Schedule of Debt (Details) - USD ($)	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total Debt	$ 371,666,000	$ 307,421,000
Mortgages Payable
Debt Instrument [Line Items]
Deferred loan costs	(161,000)	(174,000)
Total Debt	96,939,000	96,926,000
Mortgage loan with a fixed interest of 4.14% per annum, due on July 1, 2026
Debt Instrument [Line Items]
Gross debt	$ 97,100,000	97,100,000
Fixed interest rate	4.14%
Amount of balance due on maturity	$ 97,100,000
Secured Borrowings - Government Guaranteed Loans
Debt Instrument [Line Items]
Gross debt	9,539,000	12,152,000
Premiums and discounts	534,000	629,000
Total Debt	10,073,000	12,781,000
Secured borrowing principal on SBA 7(a) loans sold for a premium and excess spread
Debt Instrument [Line Items]
Gross debt	$ 6,727,000	$ 7,845,000
Weighted average rate	3.88%	5.68%
Secured borrowing principal on SBA 7(a) loans sold for excess spread
Debt Instrument [Line Items]
Gross debt	$ 2,812,000	$ 4,307,000
Weighted average rate	1.57%	3.32%
Other Debt
Debt Instrument [Line Items]
Gross debt	$ 268,948,000	$ 202,352,000
Total Debt	264,654,000	197,714,000
Junior subordinated notes
Debt Instrument [Line Items]
Gross debt	27,070,000	27,070,000
Premiums and discounts	$ (1,727,000)	(1,771,000)
Junior subordinated notes \| LIBOR
Debt Instrument [Line Items]
Interest rate margin	3.25%
Loan-Backed Notes
Debt Instrument [Line Items]
Gross debt	$ 16,912,000	22,282,000
Loan-Backed Notes \| LIBOR
Debt Instrument [Line Items]
Interest rate margin	1.40%
Loan-Backed Notes \| Prime Rate
Debt Instrument [Line Items]
Interest rate margin	1.08%
Unsecured term loan and credit facilities
Debt Instrument [Line Items]
Deferred loan costs	$ (2,567,000)	(2,867,000)
2018 Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Gross debt	209,500,000	153,000,000
2018 Revolving Credit Facility \| Line of Credit \| Paycheck Protection Program Liquidity Facility, CARES Act
Debt Instrument [Line Items]
Gross debt	15,466,000	0
2018 Revolving Credit Facility \| Unsecured Debt
Debt Instrument [Line Items]
Gross debt	$ 0	$ 0

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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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

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

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Weighted average interest rate of debt outstanding.

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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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