Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation Expense - Schedule of Nonvested Restricted Stock Units Activity (Details)

v3.22.0.1
Stock-Based Compensation Expense - Schedule of Nonvested Restricted Stock Units Activity (Details) - Restricted Stock - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Number of Shares    
Beginning balance (shares) 321,563 707,438
Granted (shares) 0 0
Vested (shares) (321,563) (385,875)
Forfeited (shares) 0 0
Ending balance (shares) 0 321,563
Aggregate intrinsic value (in thousands)    
Aggregate intrinsic value, beginning balance $ 768 $ 2,558
Aggregate intrinsic value, ending balance $ 0 $ 768
Weighted Average Grant Date Fair Value    
Nonvested, Weighted Average Grant Date Fair Value, beginning balance (usd per share) $ 0.22 $ 0.22
Granted, Weighted Average Grant Date Fair Value (usd per share) 0 0
Vested, Weighted Average Grant Date Fair Value (usd per share) 0.22 0.22
Forfeited, Weighted Average Grant Date Fair Value (usd per share) 0 0
Nonvested, Weighted Average Grant Date Fair Value, ending balance (usd per share) $ 0 $ 0.22
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]    
Vested at end of period (shares) 1,582,741  
Aggregate intrinsic value, Vested $ 9,417  
Vested, Weighted Average Grant Date Fair Value (usd per share) $ 0.22