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Stockholders' Equity - Stock-based Compensation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Stockholders' Equity    
Compensation expense $ 720 $ 720
Operating cost 620 720
Non Management Directors    
Stockholders' Equity    
Compensation expense 310 170
Employee    
Stockholders' Equity    
Compensation expense $ 410 $ 550