Quarterly report pursuant to Section 13 or 15(d)

Equity-Based Compensation - Additional Information (Detail)

v3.20.2
Equity-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Stock Compensation Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Equity based compensation expense $ 155 $ 87
Income tax benefit to equity based compensation $ 38 $ 20
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 113,000 83,000
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 54,000 40,000
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 38,000 28,000
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 21,000 15,000
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 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Equity based compensation expense $ 9 $ 0
Income tax benefit to equity based compensation $ 2 $ 0
Maximum discount on purchase price of common stock percentage on fair market value 15.00%  
Common stock may be purchased 200