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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
March 2023 PIPE [Member]
August 2022 Offering [Member]
Common Stock [Member]
Common Stock [Member]
August 2022 Pre-Funded Warrants [Member]
Common Stock [Member]
March 2023 Pre-Funded Warrants [Member]
Common Stock [Member]
March 2023 PIPE [Member]
Common Stock [Member]
August 2022 Offering [Member]
Additional Paid-In Capital [Member]
Additional Paid-In Capital [Member]
March 2023 PIPE [Member]
Additional Paid-In Capital [Member]
August 2022 Offering [Member]
Accumulated Deficit [Member]
Accumulated Other Comprehensive Income [Member]
Non-Controlling Interest [Member]
Stockholders Equity, Beginning Balance at Dec. 31, 2021 $ 31,196     $ 63         $ 257,515     $ (226,485)   $ 103
Stockholders Equity, Beginning Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021 3,392               19,390     (15,998)    
Stockholders Equity, Beginning Balance, Shares at Dec. 31, 2021       554,609                    
Issuance of shares related to employee stock purchase plan 4               4          
Issuance of shares related to employee stock purchase plan, Shares       118                    
Stock-based compensation 260               260          
Net (loss) income (4,610)                     (4,488)   (122)
Stockholders Equity, Ending Balance at Mar. 31, 2022 30,242     $ 63         277,169     (246,971)   (19)
Stockholders Equity, Ending Balance, Shares at Mar. 31, 2022       554,727                    
Stockholders Equity, Beginning Balance at Dec. 31, 2021 31,196     $ 63         257,515     (226,485)   103
Stockholders Equity, Beginning Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021 3,392               19,390     (15,998)    
Stockholders Equity, Beginning Balance, Shares at Dec. 31, 2021       554,609                    
Net (loss) income (11,284)                          
Stockholders Equity, Ending Balance at Sep. 30, 2022 25,019     $ 65         278,618     (253,615)   (49)
Stockholders Equity, Ending Balance, Shares at Sep. 30, 2022       616,079                    
Stockholders Equity, Beginning Balance at Dec. 31, 2021 31,196     $ 63         257,515     (226,485)   103
Stockholders Equity, Beginning Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021 $ 3,392               19,390     (15,998)    
Stockholders Equity, Beginning Balance, Shares at Dec. 31, 2021       554,609                    
Issuance of shares related to Pre-Funded Warrants exercise 0                          
Net (loss) income $ (15,600)                          
Stockholders Equity, Ending Balance at Dec. 31, 2022 20,900     $ 65         278,827     (257,859)   (133)
Stockholders Equity, Ending Balance, Shares at Dec. 31, 2022       616,079                    
Stockholders Equity, Beginning Balance at Mar. 31, 2022 30,242     $ 63         277,169     (246,971)   (19)
Stockholders Equity, Beginning Balance, Shares at Mar. 31, 2022       554,727                    
Stock-based compensation 323               323          
Net (loss) income (3,797)                     (3,777)   (20)
Stockholders Equity, Ending Balance at Jun. 30, 2022 26,768     $ 63         277,492     (250,748)   (39)
Stockholders Equity, Ending Balance, Shares at Jun. 30, 2022       554,727                    
Issuance of shares     $ 1,176         $ 2     $ 1,174      
Issuance of shares, Shares               61,250            
Offering costs     $ (365)               $ (365)      
Issuance of shares related to employee stock purchase plan 3               3          
Issuance of shares related to employee stock purchase plan, Shares       102                    
Stock-based compensation 314               314          
Net (loss) income (2,877)                     (2,867)   (10)
Stockholders Equity, Ending Balance at Sep. 30, 2022 25,019     $ 65         278,618     (253,615)   (49)
Stockholders Equity, Ending Balance, Shares at Sep. 30, 2022       616,079                    
Stockholders Equity, Beginning Balance at Dec. 31, 2022 20,900     $ 65         278,827     (257,859)   (133)
Stockholders Equity, Beginning Balance, Shares at Dec. 31, 2022       616,079                    
Issuance of shares   $ 4,740               $ 4,740        
Issuance of shares, Shares             165,500              
Modification of warrants related to March 2023 PIPE   $ 219               $ 219        
Issuance of shares related to Pre-Funded Warrants exercise         56,813                  
Issuance of shares related to employee stock purchase plan 5               5          
Issuance of shares related to employee stock purchase plan, Shares       88                    
Issuance of shares related to reverse stock split       19,092                    
Stock-based compensation 212               212          
Net (loss) income (9,384)                     (9,384)    
Stockholders Equity, Ending Balance at Mar. 31, 2023 16,692     $ 65         284,003     (267,243)   (133)
Stockholders Equity, Ending Balance, Shares at Mar. 31, 2023       857,572                    
Stockholders Equity, Beginning Balance at Dec. 31, 2022 $ 20,900     $ 65         278,827     (257,859)   (133)
Stockholders Equity, Beginning Balance, Shares at Dec. 31, 2022       616,079                    
Issuance of shares related to Pre-Funded Warrants exercise (307,647)                          
Issuance of shares related to reverse stock split 19,118                          
Net (loss) income $ (11,133)                          
Stockholders Equity, Ending Balance at Sep. 30, 2023 15,398     $ 65         284,371     (268,987) $ 87 (138)
Stockholders Equity, Ending Balance, Shares at Sep. 30, 2023       1,110,337                    
Stockholders Equity, Beginning Balance at Mar. 31, 2023 16,692     $ 65         284,003     (267,243)   (133)
Stockholders Equity, Beginning Balance, Shares at Mar. 31, 2023       857,572                    
Issuance of shares related to Pre-Funded Warrants exercise           250,834                
Issuance of shares related to reverse stock split       26                    
Stock-based compensation 199               199          
Unrealized gains on available-for-sale securities 21                       21  
Net (loss) income 818                     823   (5)
Stockholders Equity, Ending Balance at Jun. 30, 2023 17,730     $ 65         284,202     (266,420) 21 (138)
Stockholders Equity, Ending Balance, Shares at Jun. 30, 2023       1,108,432                    
Issuance of shares related to employee stock purchase plan 7               7          
Issuance of shares related to employee stock purchase plan, Shares       1,905                    
Stock-based compensation 162               162          
Unrealized gains on available-for-sale securities 66                       66  
Net (loss) income (2,567)                     (2,567)    
Stockholders Equity, Ending Balance at Sep. 30, 2023 $ 15,398     $ 65         $ 284,371     $ (268,987) $ 87 $ (138)
Stockholders Equity, Ending Balance, Shares at Sep. 30, 2023       1,110,337