Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Detail)

v3.5.0.2
Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Stock Compensation Plan [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense $ 29 $ 206
Income tax benefit to stock based compensation $ 10 $ 73
Employee Stock Option [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock options maximum term 10 years  
Amended and Restated 2000 Incentive Plan [Member] | Stock Compensation Plan [Member] | Maximum [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of shares authorized 1,375,000  
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Restricted stock awarded 82,000 34,000
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Performance Vested Restricted Stock [Member] | Officer [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Restricted stock awarded 43,000 15,000
Share-based compensation vesting percentage 100.00%  
Vesting period 3 years  
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Time Vested Restricted Stock [Member] | Officers and Key Employees [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Restricted stock awarded 31,000 12,000
Share-based compensation vesting percentage 33.33%  
Vesting period 3 years  
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Time Vested Restricted Stock [Member] | Director [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Restricted stock awarded 8,000 7,000
Share-based compensation vesting percentage 100.00%  
Vesting period 1 year  
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Maximum [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of shares authorized 467,000  
Amended and Restated 2000 Incentive Plan [Member] | Employee Stock Option [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock option awards granted 0 0
Employee Stock Purchase Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense $ 13 $ 14
Income tax benefit to stock based compensation $ 5 $ 5
Discount on purchase price of common stock percentage on fair market value 15.00%