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Consolidated Statements of Preferred Stock and Stockholders Equity - USD ($)
$ in Thousands
Series A Preferred stock
Preferred Stock
PIPE and license
Series A Preferred stock
Preferred Stock
Series A Preferred stock
Common Stock
Series A Preferred stock
Additional Paid-in Capital
Series A Preferred stock
Series B Preferred stock
Preferred Stock
IPO
Series B Preferred stock
Preferred Stock
Series B Preferred stock
Common Stock
Common Stock
IPO
Common Stock
Additional Paid-in Capital
IPO
Additional Paid-in Capital
Accumulated Comprehensive Income
Accumulated Deficit
IPO
Total
Balance at beginning of period at Dec. 31, 2020                   $ 1   $ 73,732 $ 14 $ (66,544)   $ 7,203
Balance at beginning of period (shares) at Dec. 31, 2020                   655,662            
Increase (Decrease) in Stockholders' Equity                                
Issuance of common stock and warrants in connection with public offering                       24,000       24,000
Issuance of common stock and warrants in connection with public offering (in shares)                   226,935            
Transaction costs                       2,089       2,089
Stock-based compensation                       662       662
Issuance of stock from exercise of warrants                       115       115
Issuance of stock from exercise of warrants (in shares)                   6,096            
Foreign currency translation adjustment                         (10)     (10)
Net loss                           (15,284)   (15,284)
Balance at end of period at Dec. 31, 2021                   $ 1   96,420 4 (81,828)   14,597
Balance at end of period (shares) at Dec. 31, 2021                   888,693            
Increase (Decrease) in Stockholders' Equity                                
Issuance of common stock $ 10,630         $ 3     $ 3   $ 5,528       $ 5,534  
Issuance of common stock (in shares) 3,700         2,602,997     3,147,003              
Conversion of preferred stock to common stock   $ 9,671         $ 3                  
Conversion of preferred stock to common stock (in shares)   3,700         2,602,997                  
Conversion of preferred stock to common stock     $ 12 $ 9,659 $ 9,671     $ 3                
Conversion of preferred stock to common stock (in shares)     12,333,333         2,602,997                
Transaction costs   $ 959                   499       499
Stock-based compensation                       854       854
Issuance of stock from exercise of warrants                   $ 6   5,558       5,564
Issuance of stock from exercise of warrants (in shares)                   6,463,993            
Foreign currency translation adjustment                         $ (4)     (4)
Net loss                           (13,967)   (13,967)
Balance at end of period at Dec. 31, 2022                   $ 25   $ 117,520   $ (95,795)   $ 21,750
Balance at end of period (shares) at Dec. 31, 2022                   25,436,019