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Net Loss Per Share (Basic and Diluted Net Loss Per Share) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Numerator:    
Net loss $ (18,887) $ (8,445)
Dividend on convertible exchangeable preferred shares (201) (201)
Beneficial conversion feature of Series B preferred stock 0 (3,775)
Adjusted Net loss applicable to common stockholders $ (19,088) $ (12,421)
Denominator:    
Net loss per share - Basic $ (2.14) $ (3.42)
Net loss per share - diluted $ (2.14) $ (3.42)
Weighted average common shares outstanding Basic 8,926,173 3,633,385
Weighted average common shares outstanding diluted 8,926,173 3,633,385