EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator [Abstract]
Net income (loss)	$ 9,206	$ 1,340	$ (3,064)	$ (5,467)	$ 5,033	$ (600)	$ (4,104)	$ (6,874)	$ 2,015	$ (6,545)	$ (11,484)
Less: preferred stock dividend									0	0	0
Less: allocation to preferred stockholders									(54)	0	0
Less: allocation to restricted stockholders									(38)	0	0
Net income (loss) allocated to common stockholders									$ 1,923	$ (6,545)	$ (11,484)
Denominator [Abstract]
Weighted average common shares outstanding (in shares)	24,563,000	24,563,000	24,555,000	24,534,000	24,533,000	24,533,000	24,486,000	24,138,000	24,554,033	24,423,479	23,906,395
Basic earnings (loss) per share (in dollars per share)	$ 0.33	$ 0.05	$ (0.12)	$ (0.22)	$ 0.21	$ (0.02)	$ (0.17)	$ (0.28)	$ 0.08	$ (0.27)	$ (0.48)
Denominator [Abstract]
Weighted average common shares outstanding (in shares)	24,563,000	24,563,000	24,555,000	24,534,000	24,533,000	24,533,000	24,486,000	24,138,000	24,554,033	24,423,479	23,906,395
Diluted shares outstanding (in shares)	24,563,000	24,608,000	24,555,000	24,534,000	24,562,000	24,533,000	24,486,000	24,138,000	24,554,033	24,423,479	23,906,395
Diluted earnings (loss) per share (in dollars per share)	$ 0.33	$ 0.05	$ (0.12)	$ (0.22)	$ 0.20	$ (0.02)	$ (0.17)	$ (0.28)	$ 0.08	$ (0.27)	$ (0.48)
Unvested Restricted Stock [Member]
Denominator [Abstract]
Dilutive potential common shares outstanding (in shares)									0	0	0
Stock Options [Member]
Denominator [Abstract]
Dilutive potential common shares outstanding (in shares)									0	0	0
Series A Preferred Stock [Member]
Denominator [Abstract]
Dilutive potential common shares outstanding (in shares)									0	0	0
Series A Convertible Preferred Stock [Member]
Antidilutive Securities [Abstract]
Antidilutive shares excluded from computation of earnings (loss) per share (in shares)									692,942
Unvested Restricted Stock [Member]
Antidilutive Securities [Abstract]
Antidilutive shares excluded from computation of earnings (loss) per share (in shares)									88,848
Stock Option 1 [Member]
Antidilutive Securities [Abstract]
Antidilutive shares excluded from computation of earnings (loss) per share (in shares)										50,422	570,306
Stock Option 2 [Member]
Antidilutive Securities [Abstract]
Antidilutive shares excluded from computation of earnings (loss) per share (in shares)									116,000	139,000	167,667