LOANS RECEIVABLE- Loans Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 84,768	$ 83,136
Deferred capitalized costs, net	662	884
Loan loss reserves	(989)	(885)
Loans receivable, net	84,441	83,135
SBA 7(a) loans receivable, subject to credit risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	33,250	32,226
SBA 7(a) loans receivable, subject to loan-backed notes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	22,765	23,631
SBA 7(a) loans receivable, paycheck protection program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	17,286	14,484
SBA 7(a) loans receivable, subject to secured borrowings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	8,555	8,786
SBA 7(a) loans receivable, held for sale
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 2,912	$ 4,009