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(Loss) Per Share (Basic and Diluted Net Loss per Share) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Numerator:    
Net loss $ (41,428) $ (43,078)
Denominator:    
Weighted average common shares outstanding - basic 20,532,838 10,360,054
Weighted average common shares outstanding - diluted 20,532,838 10,360,054
Net loss per share attributable to common stockholders - basic $ (2.02) $ (4.16)
Net loss per share attributable to common stockholders - diluted $ (2.02) $ (4.16)