Stock Compensation - Summary of Activity in Plans (Detail) - Jun. 30, 2015 - USD ($) $ / shares in Units, $ in Thousands	Total
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Shares, Outstanding at beginning of year	579,905
Shares, Granted	4,359
Shares, Exercised	(13,000)
Shares, Outstanding at end of period	571,264
Shares, Options exercisable at end of period	553,014
Weighted average exercise price, Outstanding at beginning of year	$ 2.52
Weighted average exercise price, Granted	5.43
Weighted average exercise price, Exercised	1.98
Weighted average exercise price, Outstanding at end of period	2.55
Weighted average exercise price, Options exercisable at the end of period	$ 2.49
Aggregate intrinsic value, Outstanding at end of period	$ 1,638
Aggregate intrinsic value, Options exercisable at the end of period	$ 1,618