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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income
Accumulated Deficit
Total
Balance at beginning of period at Dec. 31, 2019 $ 16 $ 49,130 $ 12 $ (36,866) $ 12,292
Balance at beginning of period (shares) at Dec. 31, 2019 15,592,718        
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock in connection with equity financing $ 1 7,499     7,500
Issuance of common stock in connection with equity financing (in shares) 750,000        
Transaction costs in connection with equity financing   (984)     (984)
Issuance of broker warrants in connection with equity financing   289     289
Issuance of common stock to former ANA stockholders and effect of asset acquisition $ 3 17,027     17,030
Issuance of common stock to former ANA stockholders and effect of asset acquisition(shares) 3,243,875        
Exercise of stock options   53     53
Exercise of stock options (in shares) 84,589        
Stock-based compensation   699     699
Foreign currency translation adjustment     2   2
Net loss       (29,678) (29,678)
Balance at end of period at Dec. 31, 2020 $ 20 73,713 14 (66,544) 7,203
Balance at end of period (shares) at Dec. 31, 2020 19,671,182        
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock and warrants in connection with equity financing $ 7 23,993     24,000
Issuance of common stock and warrants in connection with equity financing (in shares) 6,807,693        
Transaction costs in connection with equity financing   (2,089)     (2,089)
Exercise of stock options   115     115
Exercise of stock options (in shares) 182,896        
Stock-based compensation   662     662
Foreign currency translation adjustment     (10)   (10)
Net loss       (15,284) (15,284)
Balance at end of period at Dec. 31, 2021 $ 27 $ 96,394 $ 4 $ (81,828) $ 14,597
Balance at end of period (shares) at Dec. 31, 2021 26,661,771