SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	May 29, 2019	Jan. 01, 2019	May 31, 2018
Schedule of Significant Accounting Policies, General [Line Items]
Advertising expense	$ 900	$ 800
Operating lease right-of-use assets	1,217
Operating lease liabilities	$ 1,311
Minimum
Schedule of Significant Accounting Policies, General [Line Items]
Useful life	5 years
Maximum
Schedule of Significant Accounting Policies, General [Line Items]
Useful life	29 years
ASU 2016-02
Schedule of Significant Accounting Policies, General [Line Items]
Operating lease right-of-use assets				$ 1,600
Operating lease liabilities				$ 1,700
Deferred rent credit		$ 100
Series A Preferred Stock | JPMorgan Chase Funding Inc.
Schedule of Significant Accounting Policies, General [Line Items]
Preferred stock issued (in shares)		22,000			22,000
Preferred stock, purchase price, value		$ 22,000			$ 22,000
Broadway Tower
Schedule of Significant Accounting Policies, General [Line Items]
Restricted cash acquired through foreclosure	$ 400
Operating lease right-of-use assets			$ 600
Operating lease liabilities			$ 600