LOANS RECEIVABLE - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2023	Mar. 31, 2023	Jan. 01, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Decrease in credit losses		$ 124
Write-offs	$ 85	85
Loan loss reserves	$ 1,713	1,680	$ 1,106	$ 1,704	$ 1,940
Loans receivable, net (Note 5)		$ 57,005	62,547
Cumulative-effect adjustment upon adoption of ASU 2016-13 (Note 2)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan loss reserves			$ 783
Cumulative-effect adjustment upon adoption of ASU 2016-13 (Note 2) | Distributions in Excess of Earnings
Accounts, Notes, Loans and Financing Receivable [Line Items]
CECL reserve transition gross						$ 783
CECL reserve transition, deferred tax asset						$ 164
SBA 7(a) loans receivable, subject to credit risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, percent current		99.30%	98.40%
SBA 7(a) loans receivable, subject to credit risk | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net (Note 5)		$ 1,300	$ 1,000
Accounts Receivable | Customer Concentration Risk | Hospitality Industry
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk		100.00%	99.90%