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Summary Restricted Stock Awards and Restricted Stock Units Activity (Detail) - Restricted Stock
3 Months Ended
Mar. 31, 2022
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Unvested Shares, Beginning Balance | shares 1,518
Granted, Shares | shares 251
Vested, Shares | shares (102)
Forfeited, Shares | shares (15)
Unvested Shares, Ending Balance | shares 1,652
Weighted average grant date fair value, Beginning Balance | $ / shares $ 2.80
Granted, Weighted average grant date fair value | $ / shares 2.55
Vested, Weighted average grant date fair value | $ / shares 2.73
Forfeited, Weighted average grant date fair value | $ / shares 3.66
Weighted average grant date fair value, Ending Balance | $ / shares $ 2.76