TAXES - Components of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
DEFERRED TAX ASSETS
Stock-based compensation	$ 3,011	$ 2,613
Compensation and benefits	580	623
Accrued expenses	486	307
ROU asset	3,425	3,457
Bad debt reserves	26
Charitable contribution carry-forwards	63
Base stock		4
Other reserves	33	5
NOLs and credit carry-forwards	2,440	1,444
Deferred income tax asset	10,064	8,453
DEFERRED TAX LIABILITIES
Intangibles and amortization	(86)	(341)
Prepaid expenses	(1,234)	(1,354)
Fixed assets and depreciation	(18,136)	(519)
ROU lease liability	(3,422)	(3,454)
Bad debt reserves		(32)
Base stock	(249)
Federal deduction on deferred state taxes	(27)	(70)
Deferred income tax liability	(23,154)	(5,770)
NET DEFERRED INCOME TAX ASSET	$ (13,090)
NET DEFERRED INCOME TAX ASSET		$ 2,683