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Condensed Statements of Changes in Stockholders' Deficit - USD ($)
$ in Thousands
Total
Warrant exercises
Public Equity Offering - ATM
Public Equity Offering
Common Stock
Common Stock
Warrant exercises
Common Stock
Public Equity Offering - ATM
Common Stock
Public Equity Offering
Additional Paid-in Capital
Additional Paid-in Capital
Warrant exercises
Additional Paid-in Capital
Public Equity Offering - ATM
Additional Paid-in Capital
Public Equity Offering
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022         54,827,734                
Beginning balance at Dec. 31, 2022 $ (118,554)       $ 55       $ 192,598       $ (311,207)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                          
Common Stock issued under public equity offering (in shares)               1,078,622          
Common Stock issued under public equity offering       $ 993       $ 1       $ 992  
Costs of common stock issued under public equity offering       (77)               (77)  
Share-based compensation expense 344               344        
Vested restricted stock units, net (in shares)         16,005                
Vested restricted stock units, net (8)               (8)        
Other (1)               (1)        
Net (loss) income 8,068                       8,068
Ending balance (in shares) at Mar. 31, 2023         55,922,361                
Ending balance at Mar. 31, 2023 (109,235)       $ 56       193,848       (303,139)
Beginning balance (in shares) at Dec. 31, 2022         54,827,734                
Beginning balance at Dec. 31, 2022 (118,554)       $ 55       192,598       (311,207)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                          
Net (loss) income 241                        
Ending balance (in shares) at Sep. 30, 2023         66,740,765                
Ending balance at Sep. 30, 2023 (102,927)       $ 67       207,972       (310,966)
Beginning balance (in shares) at Dec. 31, 2022         54,827,734                
Beginning balance at Dec. 31, 2022 (118,554)       $ 55       192,598       (311,207)
Ending balance (in shares) at Dec. 31, 2023         68,533,085                
Ending balance at Dec. 31, 2023 (106,487)       $ 69       212,521       (319,077)
Beginning balance (in shares) at Mar. 31, 2023         55,922,361                
Beginning balance at Mar. 31, 2023 (109,235)       $ 56       193,848       (303,139)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                          
Common Stock issued under public equity offering (in shares)           3,689,452   1,981,937          
Common Stock issued under public equity offering   $ 3,542   4,409   $ 4   $ 2   $ 3,538   4,407  
Costs of common stock issued under public equity offering       (235)               (235)  
Shares issued under employee stock purchase plan (in shares)         18,699                
Shares issued under employee stock purchase plan 31               31        
Share-based compensation expense 631               631        
Vested restricted stock units, net (in shares)         3,510                
Vested restricted stock units, net (3)               (3)        
Other 1               1        
Net (loss) income (5,792)                       (5,792)
Ending balance (in shares) at Jun. 30, 2023         61,615,959                
Ending balance at Jun. 30, 2023 (106,651)       $ 62       202,218       (308,931)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                          
Common Stock issued under public equity offering (in shares)           5,000,000   124,181          
Common Stock issued under public equity offering   $ 4,800   264   $ 5       $ 4,795   264  
Costs of common stock issued under public equity offering       (80)               (80)  
Share-based compensation expense $ 774               774        
Options exercises, net (in shares) 625                        
Options exercised, net $ 1                        
Net (loss) income (2,035)                       (2,035)
Ending balance (in shares) at Sep. 30, 2023         66,740,765                
Ending balance at Sep. 30, 2023 (102,927)       $ 67       207,972       (310,966)
Beginning balance (in shares) at Dec. 31, 2023         68,533,085                
Beginning balance at Dec. 31, 2023 (106,487)       $ 69       212,521       (319,077)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                          
Common Stock issued under public equity offering (in shares)             4,557,220 16,666,667          
Common Stock issued under public equity offering     $ 12,385 75,000     $ 4 $ 17     $ 12,381 74,983  
Costs of common stock issued under public equity offering     (410) (5,187)             (410) (5,187)  
Share-based compensation expense 1,580               1,580        
Vested restricted stock units, net (in shares)         490,359                
Vested restricted stock units, net $ (893)               (893)        
Options exercises, net (in shares) 231,400                        
Options exercised, net $ 539                        
Net (loss) income (12,828)                       (12,828)
Ending balance (in shares) at Mar. 31, 2024         90,478,731                
Ending balance at Mar. 31, 2024 (36,301)       $ 90       295,514       (331,905)
Beginning balance (in shares) at Dec. 31, 2023         68,533,085                
Beginning balance at Dec. 31, 2023 (106,487)       $ 69       212,521       (319,077)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                          
Net (loss) income (27,082)                        
Ending balance (in shares) at Sep. 30, 2024         91,178,193                
Ending balance at Sep. 30, 2024 (45,420)       $ 91       300,648       (346,159)
Beginning balance (in shares) at Mar. 31, 2024         90,478,731                
Beginning balance at Mar. 31, 2024 (36,301)       $ 90       295,514       (331,905)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                          
Common Stock issued under public equity offering (in shares)               559,801          
Common Stock issued under public equity offering       2,520       $ 1       2,519  
Costs of common stock issued under public equity offering     $ (158) $ (359)             $ (158) $ (359)  
Shares issued under employee stock purchase plan (in shares)         17,716                
Shares issued under employee stock purchase plan 46               46        
Share-based compensation expense 1,523               1,523        
Vested restricted stock units, net (in shares)         3,512                
Vested restricted stock units, net (5)               (5)        
Net (loss) income (2,745)                       (2,745)
Ending balance (in shares) at Jun. 30, 2024         91,059,760                
Ending balance at Jun. 30, 2024 (35,479)       $ 91       299,080       (334,650)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                          
Share-based compensation expense 1,577               1,577        
Vested restricted stock units, net (in shares)         (7,192)                
Vested restricted stock units, net (202)               (202)        
Options exercises, net (in shares)         125,625                
Options exercised, net 193               193        
Net (loss) income (11,509)                       (11,509)
Ending balance (in shares) at Sep. 30, 2024         91,178,193                
Ending balance at Sep. 30, 2024 $ (45,420)       $ 91       $ 300,648       $ (346,159)