NET LOSS PER SHARE - Reconciliation of Numerators and Denominators of Basic and Diluted EPS (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
EPS - basic and diluted
Numerator: net (loss) income	$ (1,494)	$ 405
Denominator:
Common shares	21,033	11,881
RSUs - vested	1	26
Basic weighted average shares outstanding	21,034	11,907
EPS - basic	$ (0.07)	$ 0.03
EPS - basic and diluted
Numerator: net (loss) income	$ (1,494)	$ 405
Denominator:
Common shares	21,033	11,881
RSUs - vested and nonvested	1	202
Diluted weighted average shares outstanding	21,034	12,083
EPS - diluted	$ (0.07)	$ 0.03
Common stock issuable:
Total excluded potentially dilutive shares	3,725	1,456
Employee Stock Option [Member]
Denominator:
Stock options	0	0
Common stock issuable:
Total excluded potentially dilutive shares	1,482	1,396
Warrant [Member]
Denominator:
Common stock warrants	0	0
Common stock issuable:
Total excluded potentially dilutive shares	1,842	60
Restricted Stock Units (RSUs) [Member]
Common stock issuable:
Total excluded potentially dilutive shares	401	0