Quarterly report pursuant to Section 13 or 15(d)

Common Stock - Restricted Stock Unit Awards - Additional Information (Detail)

v3.21.1
Common Stock - Restricted Stock Unit Awards - Additional Information (Detail) - Restricted Stock Unit [Member] - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Award vesting period 4 years  
Stock based compensation expense $ 0.1 $ 30,000
Total unrecognized compensation expense related to the Company's restricted stock unit awards $ 100,000  
Weighted-average period, restricted stock awards 2 years 1 month 13 days