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Share-based Compensation - Additional Information (Detail)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
Jul. 31, 2020
shares
Mar. 31, 2021
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense related to unvested stock options | $   $ 10.2
Expected weighted average period for recognition of compensation expense   1 year 8 months 12 days
Employee Stock Option    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock option vested percentage   25.00%
Share-based compensation arrangement by share-based payment award, expiration period   10 years
Employee Stock Option | Share-based Payment Arrangement Tranche Two    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, award vesting period   36 months
Employee Stock Option | Directors    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, expiration period   10 years
Restricted Stock Units (RSUs) | Employees    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected weighted average period for recognition of compensation expense   1 year 1 month 6 days
RSUs granted 442,650  
Number of common stock to be received for each RSUs   1
RSUs grant date fair value per unit | $ / shares   $ 3.49
Restricted stock units forfeiture during the period   12,000
Share based compensation by share based payment arrangement other than options unvested outstanding   430,650
Share based compensation by share based payment arrangement other than options unvested cost not yet recognised amount | $   $ 0.8
Number of shares for each unit of restricted stock   1.25
2008 Omnibus Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Common stock authorized   29,014,794
Shares available for future grant   10,284,365
Maximum [Member] | Restricted Stock Units (RSUs) | Employees    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, award vesting period   2 years
Minimum [Member] | Directors    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, award vesting period   12 months
Minimum [Member] | Restricted Stock Units (RSUs) | Employees    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, award vesting period   1 year