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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Series X1 Non-voting Convertible Preferred Stock [Member]
Series X Non Voting Convertible Preferred Stock [Member]
Beginning Balance at Dec. 31, 2020 $ 190,596 $ 15 $ 270,974 $ (80,393)    
Beginning Balance, Shares at Dec. 31, 2020   15,160,397     108,070  
Cancellation of common stock in connection with exchange for preferred stock, Shares   (344,666)       6,204
Cancellation of common stock in connection with exchange for warrants   $ (1) 1      
Cancellation of common stock in connection with exchange for warrants, Shares   (509,117)        
Stock-based compensation 1,774   1,774      
Net loss and other comprehensive loss (8,499)     (8,499)    
Ending Balance at Mar. 31, 2021 183,871 $ 14 272,749 (88,892)    
Ending Balance, Shares at Mar. 31, 2021   14,306,614     108,070 6,204
Beginning Balance at Dec. 31, 2021 163,995 $ 14 278,880 (114,899)    
Beginning Balance, Shares at Dec. 31, 2021   14,306,788     108,070 6,204
Cancellation of common stock in connection with exchange for warrants 1   1      
Cancellation of common stock in connection with exchange for preferred stock, Shares   (550,000)     9,900  
Stock-based compensation 2,186   2,186      
Net loss and other comprehensive loss (9,864)     (9,864)    
Ending Balance at Mar. 31, 2022 $ 156,318 $ 14 $ 281,067 $ (124,763)    
Ending Balance, Shares at Mar. 31, 2022   13,756,788     117,970 6,204