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Summary of Significant Accounting Policies - Summary of Computation of Net Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Numerator:    
Net income $ 1,066 $ 4,716
Denominator:    
Basic weighted-average common shares outstanding (in shares) 13,709 14,228
Effect of dilutive securities:    
Stock awards and options (in shares) 59 228
Warrants (in shares) 62 381
Diluted weighted-average common shares outstanding (in shares) 13,830 14,837
Net income per share, basic (USD per share) $ 0.08 $ 0.33
Net income per share, diluted (USD per share) $ 0.08 $ 0.32