XML 32 R22.htm IDEA: XBRL DOCUMENT v3.23.1
Going Concern and Management's Plans (Additional Information) (Details) - USD ($)
$ in Thousands
 3 Months Ended
May 05, 2023
Mar. 31, 2023
Mar. 31, 2022
Apr. 28, 2023
Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Net loss   $ (10,772) $ (9,864)    
Accumulated deficit   (213,637)     $ (202,865)
Cash and cash equivalents   $ 46,485     $ 56,409
Common stock, shares issued   13,776,788     13,776,788
Common stock, shares outstanding   13,776,788     13,776,788
Securities purchase agreement initial closing Member | Private Placement [Member] | Subsequent Event          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Common Warrants issued $ 35,000        
Securities purchase agreement initial closing Member | Private Placement [Member] | Subsequent Event | Pre-funded Warrants          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Common stock, shares issued 6,421,350        
Securities purchase agreement initial closing Member | Accredited Investor [Member] | Private Placement [Member] | Subsequent Event          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Common Warrants issued $ 45,500        
Common stock, shares issued 8,730,168     15,151,518  
Common stock warrants to purchase common stock shares 15,151,518     15,151,518  
Securities purchase agreement second and third closing | Accredited Investor [Member] | Private Placement [Member] | Subsequent Event          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Common Warrants issued $ 105,000