LOANS RECEIVABLE- Loans Receivable, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 94,308	$ 83,136
Deferred capitalized costs, net	1,467	884
Loan loss reserves	(959)	(885)
Loans receivable, net	94,816	83,135
SBA 7(a) loans receivable, subject to credit risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	42,498	32,226
SBA 7(a) loans receivable, subject to loan-backed notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	20,129	23,631
SBA 7(a) loans receivable, paycheck protection program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	7,622	14,484
SBA 7(a) loans receivable, subject to secured borrowings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	8,064	8,786
SBA 7(a) loans receivable, held for sale
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 15,995	$ 4,009