Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Warrants - Summary of Status of Company's Stock Option Activity (Details)

v3.22.1
Stock-Based Compensation and Warrants - Summary of Status of Company's Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Shares    
Outstanding at the beginning (in shares) 1,252,352  
Exercisable (in shares) 1,126,685  
Outstanding at the ending (in shares) 1,252,352 1,252,352
Exercisable (in shares) 1,149,352 1,126,685
Weighted average exercise price    
Outstanding at the beginning (in dollars per share) $ 3.36  
Exercisable (in dollars per share) 3.48  
Exercised (in dollars per share) 0  
Outstanding at the ending (in dollars per share) 3.36 $ 3.36
Exercisable (in dollars per share) $ 3.47 $ 3.48
Weighted average remaining contractual life (Years)    
Weighted average remaining contractual life 3 years 8 months 1 day 3 years 11 months 1 day
Exercisable weighted average remaining contractual life 3 years 6 months 14 days 3 years 8 months 19 days
Intrinsic value    
Intrinsic value, Outstanding $ 8,951 $ 11,581
Intrinsic value, Exercisable $ 8,088 $ 10,283