Quarterly report pursuant to Section 13 or 15(d)

Stock Incentive Plan - Schedule of Stock Option Activity (Detail)

v3.22.1
Stock Incentive Plan - Schedule of Stock Option Activity (Detail) - Employee Stock Option [Member] - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Shares    
Beginning Balance 1,900,417  
Granted 100,000  
Exercised (40,913)  
Forfeited or expired (161,664)  
Ending Balance 1,797,840 1,900,417
Exercisable 963,590  
Expected to Vest 792,120  
Weighted Average Exercise Price    
Beginning Balance $ 3.01  
Granted 3.26  
Exercised 2.31  
Forfeited or expired 6.09  
Ending Balance 2.76 $ 3.01
Exercisable 3.38  
Expected to Vest 2.78  
Weighted Average Grant Date Fair value    
Beginning Balance 1.37  
Granted 2.66  
Exercised 1.16  
Forfeited or expired 3.48  
Ending Balance 1.25 $ 1.37
Exercisable 1.38  
Expected to Vest $ 1.26  
Weighted Average Remaining Contractual Term    
Contractual term 4 years 9 months 18 days 4 years 4 months 24 days
Exercisable 3 years 1 month 6 days  
Expected to Vest 4 years 8 months 12 days  
Aggregate Intrinsic Value    
Beginning Balance   $ 1,310
Granted $ 0  
Exercised $ 50  
Forfeited or expired 0  
Ending Balance 1,640  
Exercisable 523  
Expected to Vest $ 1,584