XML 45 R35.htm IDEA: XBRL DOCUMENT v3.21.1
Equity and Stock-based Compensation - Stock Option Grants and Unrestricted Stock Grants (Details)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 28, 2021
installment
shares
Jan. 31, 2021
USD ($)
shares
Nov. 30, 2020
shares
Oct. 31, 2020
shares
Sep. 30, 2020
shares
Jul. 31, 2020
USD ($)
shares
May 31, 2020
shares
Mar. 31, 2020
shares
Jan. 31, 2020
USD ($)
shares
Jul. 31, 2019
USD ($)
shares
Mar. 31, 2021
USD ($)
shares
Mar. 31, 2020
USD ($)
shares
Dec. 31, 2020
installment
Dec. 31, 2020
shares
Dec. 31, 2019
USD ($)
installment
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Total stock-based compensation expense                     $ 197 $ 83      
2001 Nonqualified Stock Plan | March 2019 Grant | Directors, officers and employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of stock options granted | shares                 56,605 58,548          
Number of common stock shares surrendered by employees withholding taxes | shares                 14,895 12,952          
Common stock value surrendered by employees withholding taxes                 $ 50,000 $ 43,000          
Stock options                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of stock options granted | shares                     2,875,000 0      
Unrestricted Stock | 2001 Nonqualified Stock Plan | 2019 Grant | Directors                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of unrestricted stock granted | shares 56,533                            
Number of installment | installment 2                            
Total stock-based compensation expense                     $ 300        
Stock-based compensation expense charged to expense                     100        
Remaining stock based compensation expense                     200        
Unrestricted Stock | 2001 Nonqualified Stock Plan | 2019 Grant | Directors, officers and employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of unrestricted stock granted | shares                           30,000 120,000
Number of installment | installment                             3
Total stock-based compensation expense                             $ 300
Stock-based compensation expense charged to expense                     21,000 $ 21,000      
Remaining stock based compensation expense                             $ 200
Unrestricted Stock | 2001 Nonqualified Stock Plan | 2020 Grant | Directors, officers and employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Total stock-based compensation expense                     700        
Stock-based compensation expense charged to expense                     10,000        
Remaining stock based compensation expense                     $ 700        
Unrestricted Stock | 2001 Nonqualified Stock Plan | 2020 Grant                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of shares granted (in shares) | shares     13,250 13,250                      
Unrestricted Stock | 2001 Nonqualified Stock Plan | 2020 Grant | Directors, officers and employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of installment | installment                         2    
Number of shares granted (in shares) | shares             243,000 243,000           256,250  
Unrestricted Stock | 2001 Nonqualified Stock Plan | March and May 2020 Grant | Directors, officers and employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of stock options granted | shares           109,773                  
Number of common stock shares surrendered by employees withholding taxes | shares           11,727                  
Common stock value surrendered by employees withholding taxes           $ 100                  
Unrestricted Stock | 2001 Nonqualified Stock Plan | September and October 2019 Grant | Directors, officers and employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of stock options granted | shares       30,000 30,000                    
Unrestricted Stock | 2001 Nonqualified Stock Plan | March, May and November 2020 Grant | Directors, officers and employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of stock options granted | shares   115,403                          
Number of common stock shares surrendered by employees withholding taxes | shares   15,347                          
Common stock value surrendered by employees withholding taxes   $ 100