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Stock Based Compensation Plans (Narrative) (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Mar. 31, 2012
Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock options granted to employees         217
Total unrecognized compensation cost related to option awards $ 325   $ 325    
Stock Option
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock granted, vesting period         3 years
Stock options granted to employees, term in years         10 years
Stock-based compensation expense 83 79 246 250  
Restricted Stock | Employees
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock granted, vesting period     3 years   3 years
Common stock granted, shares     120   103
Restricted Stock | Non Employee Directors
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock granted, vesting period     1 year   1 year
Common stock granted, shares     25   38
Performance Shares
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock granted, shares     84   49
Upper limit of target grant, shares     126   73
Performance-vested restricted stock units, vesting percentage 100.00%   100.00%   100.00%
Restricted Stock and Restricted Stock Units
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense 361 203 1,097 623  
Total unrecognized compensation cost $ 2,204   $ 2,204    
2010 Plan
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Maximum number of shares of common stock that may be issued 5,250   5,250