Equity Incentive Plan - Schedule of Stock Options Outstanding and Exercisable (Detail) (2008 Equity Incentive Plan, Stock Options, USD $)	0 Months Ended	12 Months Ended
	Apr. 29, 2008	Jun. 30, 2014
2008 Equity Incentive Plan | Stock Options
Shares
Outstanding at beginning of year (in shares)		555,183
Granted (in shares)	595,000	10,000
Exercised (in shares)		(126,500)
Outstanding at end of year (in shares)		438,683
Options exercisable at end of year (in shares)		393,183
Weighted Average Exercise Price per Share
Outstanding at beginning of year, weighted average exercise price per share (USD per share)		$ 11.02
Granted, weighted average exercise price per share (USD per share)		$ 16.49
Exercised, weighted average exercise price per share (USD per share)		$ 10.86
Outstanding at end of year, weighted average exercise price per share (USD per share)		$ 11.20
Options exercisable at end of year, weighted average exercise price per share (USD per share)		$ 10.95
Outstanding at end of year, weighted average remaining contractual term		4 years 4 months 24 days
Options exercisable at end of year, weighted average remaining contractual term		3 years 10 months 24 days