NET LOSS PER SHARE - RECONCILIATION USED IN COMPUTING BASIC AND DILUTED NET INCOME PER SHARE (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Numerator:
Net loss	$ (2,695)	$ (59)
Denominator:
Shares used in calculating basic and diluted net loss per share (in shares)	28,493	27,818
Basic and diluted net loss per share (in dollars per share)	$ (0.09)	$ 0.00