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Capital Stock, Treasury Stock and Additional Paid-in Capital - Additional Information (Detail) - USD ($)
 12 Months Ended
Mar. 31, 2020
Dec. 31, 2020
May 23, 2019
Stockholders' Equity Note [Abstract]      
Stock repurchased during period, share 1,366,045    
Treasury stock acquired, average cost per share   $ 2.81  
Treasury stock, shares, acquired   359,792  
Stock repurchase program, authorized amount, additional     $ 10,000,000
Stock Issued During Period, Shares, Acquisitions 4,761,904    
Shares Issued, Price Per Share $ 2.1    
Stock Repurchase Program Expiration Date Apr. 28, 2020