v3.23.1
Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Preferred Stock [Member]
Total
Balance (in shares) at Dec. 31, 2021 6,840,967      
Balance at Dec. 31, 2021 $ 7 $ 437,684 $ (473,584) $ (35,893)
Stock-based compensation $ 0 783 0 783
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for employee taxes (in shares) 25,769      
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for employee taxes $ 0 (58) 0 (58)
Issuance of common stock upon ESPP purchase (in shares) 7,671      
Issuance of common stock upon ESPP purchase $ 0 58 0 58
Net loss $ 0 0 (8,674) (8,674)
Issuance of common stock in connection with asset acquisition (in shares) 481,026      
Issuance of common stock in connection with asset acquisition $ 0 5,511 0 5,511
Balance (in shares) at Mar. 31, 2022 7,355,433      
Balance at Mar. 31, 2022 $ 7 443,978 (482,258) (38,273)
Balance (in shares) at Dec. 31, 2022 8,243,680      
Balance at Dec. 31, 2022 $ 8 447,635 (425,829) 21,814 [1]
Stock-based compensation $ 0 569 0 569
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for employee taxes (in shares) 21,700      
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for employee taxes $ 0 (22) 0 (22)
Exercise of prefunded warrants (in shares) 2,632,898      
Exercise of prefunded warrants $ 2 0 0 2
Issuance of common stock upon ESPP purchase (in shares) 26,016      
Issuance of common stock upon ESPP purchase $ 1 30 0 31
Net loss $ 0 0 (8,152) (8,152)
Balance (in shares) at Mar. 31, 2023 10,924,294      
Balance at Mar. 31, 2023 $ 11 $ 448,212 $ (433,981) $ 14,242 [1]
[1] Adjusted to give retroactive effect to a 1-for-20 reverse stock split effective as of 5:01 p.m. Eastern Time on October 25, 2022.