NET INCOME (LOSS) PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator [Abstract]
Net income (loss)	$ 2,426	$ 4,489	$ 783	$ (1,750)	$ 6,915	$ (967)
Less: preferred stock dividend	(304)		(305)		(608)	(610)
Less: allocation to preferred stockholders	(349)		(83)		(1,046)	0
Less: allocation to restricted stockholders	(143)		(23)		(403)	0
Net income (loss) allocated to common stockholders	$ 1,630		$ 372		$ 4,858	$ (1,577)
Denominator [Abstract]
Weighted average common shares outstanding (in shares)	25,105,238		24,741,331		24,996,583	24,669,838
Basic income (loss) per share (in dollars per share)	$ 0.06		$ 0.02		$ 0.19	$ (0.06)
Denominator [Abstract]
Weighted average number of common shares outstanding (in shares)	25,105,238		24,741,331		24,996,583	24,669,838
Diluted shares outstanding (in shares)	25,105,238		24,741,331		24,996,583	24,669,838
Diluted income (loss) per share (in dollars per share)	$ 0.06		$ 0.02		$ 0.19	$ (0.06)
Antidilutive Shares [Abstract]
Antidilutive shares excluded from computation of loss per share (in shares)	6,342,233		5,897,416		6,209,920	5,979,960
Unvested Restricted Stock [Member]
Denominator [Abstract]
Dilutive potential common shares outstanding (in shares)	0		0		0	0
Antidilutive Shares [Abstract]
Antidilutive shares excluded from computation of loss per share (in shares)	960,877		319,461		828,564	466,581
Series A Preferred Stock [Member]
Denominator [Abstract]
Dilutive potential common shares outstanding (in shares)	0		0		0	0
Antidilutive Shares [Abstract]
Antidilutive shares excluded from computation of loss per share (in shares)	5,381,356		5,577,955		5,381,356	5,513,379