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Stockholders' Equity - Stock Awards (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Oct. 29, 2021
Oct. 01, 2021
Jul. 01, 2021
May 07, 2021
Apr. 26, 2021
Apr. 01, 2021
Dec. 04, 2020
May 20, 2020
Dec. 31, 2021
Dec. 31, 2020
Other disclosures                    
Compensation expense                 $ 720 $ 850
Non Management Directors                    
Other disclosures                    
Compensation expense                 170 110
Employee                    
Other disclosures                    
Compensation expense                 $ 550 $ 740
Restricted Stock                    
Number of Other than Options                    
Outstanding, beginning balance (in shares)                 780,833  
Granted (in shares)                 284,004  
Canceled (in shares)                 0  
Vested (in shares)                 (249,004)  
Expired/Forfeited (in shares)                 0  
Outstanding, ending balance (in shares)                 815,833 780,833
Weighted Average Exercise Price                    
Outstanding, beginning balance (in dollars per share)                 $ 4.09  
Granted (in dollars per share)                 1.66  
Canceled (in dollars per share)                 0  
Vested (in dollars per share)                 1.61  
Expired/Forfeited (in dollars per share)                 0  
Outstanding, ending balance (in dollars per share)                 $ 4.00 $ 4.09
Other disclosures                    
Compensation expense                 $ 400 $ 600
Unrecognized compensation expense                 $ 100  
Weighted average period of recognition                 1 year 3 months  
Restricted Stock | Senior Management                    
Number of Other than Options                    
Granted (in shares)       181,179            
Other disclosures                    
Compensation expense                 $ 300 $ 300
Restricted Stock | Non Management Directors                    
Number of Other than Options                    
Granted (in shares)           50,000        
Other disclosures                    
Award vesting period (in years)           2 years        
Restricted Stock | Consultant                    
Number of Other than Options                    
Granted (in shares)   16,892 9,399   14,045          
Restricted Stock | Employee                    
Number of Other than Options                    
Granted (in shares) 12,489           32,300 270,728    
Restricted Stock | April 1, 2022 | Non Management Directors                    
Other disclosures                    
Percentage of options vested per tranche           50.00%        
Restricted Stock | April 1, 2023 | Non Management Directors                    
Other disclosures                    
Percentage of options vested per tranche           50.00%