Summary of Business and Significant Accounting Policies - Schedule of Calculation of Basic and Diluted Net Income (Loss) Per Common Share (Detail) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2016 USD ($) segment $ / shares shares	Jun. 30, 2015 USD ($) $ / shares shares	Jun. 30, 2014 USD ($) $ / shares shares
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Net loss | $	$ 1,377	$ (3,001)	$ (1,379)	$ (3,237)	$ (2,933)	$ (2,399)	$ (5,461)	$ (1,636)	$ (6,240)	$ (12,429)	$ (5,246)
Basic net income (loss) per common share | $ / shares									$ (0.23)	$ (0.47)	$ (0.21)
Weighted average common shares used in computing basic net loss per common share									27,056,000	26,609,000	25,353,000
Weighted average common shares used in computing diluted net loss per common share									27,056,000	26,609,000	25,353,000
Diluted net loss per common stock | $ / shares									$ (0.23)	$ (0.47)	$ (0.21)
Antidilutive securities excluded from computation of earnings per share, share amount									2,661,609	2,718,069	2,218,445
Operating segment | segment									1