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Stock Compensation Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Weighted average fair value of options granted $ 1.21 $ 1.08
Intrinsic value of options exercised (in thousands) $ 71  
Restricted Stock    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Total grant date fair value of restricted stock vested (in thousands) $ 1,786 $ 2,666