INCOME TAXES - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 869	$ (67)	$ 10
State and local	643	(425)	777
Deferred:
Federal	(32)	(279)	232
State and local	20	(151)	49
Effect of federal tax law change	0	0	606
Income tax expense (benefit)	$ 1,500	$ (922)	$ 1,674