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Share-Based Payments (Detail Textuals)
12 Months Ended
Mar. 31, 2019
USD ($)
EquityPlan
shares
Mar. 31, 2018
USD ($)
Aug. 13, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of share-based compensation plans | EquityPlan 2    
Stock options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total intrinsic value of options exercised | $ $ 98,000 $ 343,000  
2006 Plan | Stock options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized to grant 1,100,000    
Contractual terms of options granted 10 years    
2006 Plan | Stock options | Employees and directors | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period for stock awards 3 years    
2006 Plan | Stock options | Employees and directors | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period for stock awards 5 years    
2006 Plan | Restricted stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period for stock awards 3 years    
2015 plan | Stock options | Board of Directors      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized to grant     750,000