Registration of securities issued in business combination transactions

Stock Based Compensation - Stock Option Activity (Detail)

v3.6.0.2
Stock Based Compensation - Stock Option Activity (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Oct. 12, 2015
Sep. 30, 2016
Sep. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Number of Shares          
Balance at beginning of year (in shares)   726,973 1,032,334 1,032,334 1,311,528
Granted (in shares)   0 0 0 223,123
Exercised (in shares)   0 0 0 (61,849)
Forfeited (in shares)   0 (6,250) (13,958) (427,969)
Expired (in shares)   0 (33,333) (291,403) (12,499)
Balance at end of year (in shares)   726,973   726,973 1,032,334
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]          
Weighted average exercise price per share, balance at beginning of year (in dollars per share)   $ 11.32 $ 11.15 $ 11.15 $ 10.08
Weighted average exercise price per share, granted (in dollars per share)   0.00   0.00 13.83
Weighted average exercise price per share, exercised (in dollars per share)   0.00   0.00 8.74
Weighted average exercise price per share, forfeited (in dollars per share)   0.00   7.60 9.68
Weighted average exercise price per share, expired (in dollars per share)   0.00   10.91 8.90
Weighted average exercise price per share, options outstanding at year end (in dollars per share)   $ 11.32   $ 11.32 $ 11.15
Weighted average remaining contractual term (in years)   3 years 6 months 26 days   6 years 2 months 12 days 5 years 7 months 6 days
Weighted average remaining contractual term   3 years 6 months 26 days   6 years 2 months 12 days 5 years 7 months 6 days
Share-based compensation expense       $ 701,000 $ 891,000
Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]          
Share-based compensation expense         $ (67,000)
Chief Financial Officer | Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]          
Grants in period (in shares) 62,500        
Share-based compensation expense $ 0        
Chief Financial Officer | Phantom Share Units (PSUs)          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]          
Grants in period (in shares) 62,500