Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Effects of Stock-Based Compensation Related to Stock Option and Restricted Stock Awards (Detail)

v3.21.1
Stock-Based Compensation - Effects of Stock-Based Compensation Related to Stock Option and Restricted Stock Awards (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Stock-based compensation expense $ 179 $ 263
Cost of revenues    
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Stock-based compensation expense 15 16
General and administrative    
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Stock-based compensation expense $ 164 $ 247