Quarterly report pursuant to Section 13 or 15(d)

Common Stock (Details)

v3.23.1
Common Stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Feb. 28, 2023
Mar. 31, 2023
Mar. 31, 2022
Class of Warrant or Right [Line Items]      
Common shares issued for extinguishment of debt (in shares)   1,547,234  
Shares issued for cash / offering   $ 14,966 $ 1,500
Additional Paid-in Capital      
Class of Warrant or Right [Line Items]      
Common shares issued for extinguishment of debt   $ 1,400  
Shares issued for cash / offering     $ 1,500
September 2021 Warrants      
Class of Warrant or Right [Line Items]      
Common shares issued for extinguishment of debt (in shares) 232,675    
Shares issued for cash / offering (in shares) 76,794 324,918  
March 2022 Warrants      
Class of Warrant or Right [Line Items]      
Common shares issued for extinguishment of debt (in shares) 751,867    
Shares issued for cash / offering (in shares) 248,124 324,918  
ATM      
Class of Warrant or Right [Line Items]      
Shares issued for cash / offering (in shares)   9,655,207  
Sale of stock, consideration received on transaction   $ 15,400  
Sale of stock, consideration received, net of offering cost   $ 15,000  
ATM | Minimum      
Class of Warrant or Right [Line Items]      
Share price (in usd per share)   $ 1.15  
ATM | Maximum      
Class of Warrant or Right [Line Items]      
Share price (in usd per share)   1.86  
Registered Direct Offering | Warrants      
Class of Warrant or Right [Line Items]      
Exercise price of warrants (in usd per share)   $ 0.001  
Registered Direct Offering | Pre-Funded Warrants      
Class of Warrant or Right [Line Items]      
Shares issued for cash / offering (in shares)   1,380,000  
Registered Direct Offering | Pre-Funded Warrants | Warrants      
Class of Warrant or Right [Line Items]      
Warrants exercised for common shares (in shares)   1,380,000