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Stockholders' Equity - Stock Awards (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Other disclosures    
Compensation expense $ 30 $ 160
Restricted Stock    
Number of Other than Options    
Outstanding, beginning balance (in shares) 815,833  
Granted (in shares) 0  
Canceled (in shares) 0  
Vested (in shares) 0  
Expired/Forfeited (in shares) 0  
Outstanding, ending balance (in shares) 815,833  
Weighted Average Exercise Price    
Outstanding, beginning balance (in dollars per share) $ 4.00  
Granted (in dollars per share) 0  
Canceled (in dollars per share) 0  
Vested (in dollars per share) 0  
Expired/Forfeited (in dollars per share) 0  
Outstanding, ending balance (in dollars per share) $ 4.00  
Other disclosures    
Compensation expense $ 100 $ 100
Unrecognized compensation expense $ 50  
Weighted average period of recognition 1 year