(LOSS) EARNINGS PER SHARE - Computation of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
(LOSS) EARNINGS PER SHARE
Net (loss) income	$ (2,551)	$ 1,501
Denominator:
Denominator for basic earnings (loss) per share - weighted average shares (in shares)	8,633	8,375
Effect of dilutive securities:
Employee restricted stock and incentive stock options (in shares)		24
Denominator for diluted earnings (loss) per share - adjusted weighted average shares and assumed conversion (in shares)	8,633	8,399
Basic (loss) earnings per share (in dollars per share)	$ (0.30)	$ 0.18
Diluted (loss) earnings per share (in dollars per share)	$ (0.30)	$ 0.18
Weighted average anti-dilutive employee restricted stock and incentive stock options (in shares)	439	260