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Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021   46,958,776      
Beginning balance at Dec. 31, 2021 $ 118,900 $ 5 $ 259,859 $ (221) $ (140,743)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock upon exercise of stock options (in shares)   208      
Issuance of common stock upon exercise    of stock options 0   0    
Issuance of common stock under stock purchase plan (in shares)   51,329      
Issuance of common stock under stock purchase plan 157   157    
Issuance of common stock upon public offering, net of issuance costs (in shares)   7,337,251      
Issuance of common stock upon public offering, net of issuance costs 20,556 $ 1 20,555    
Stock-based compensation expense 1,865   1,865    
Unrealized gain (loss) on marketable securities (690)     (690)  
Net income (loss) 6,199       6,199
Ending balance (in shares) at Mar. 31, 2022   54,347,564      
Ending balance at Mar. 31, 2022 146,987 $ 6 282,436 (911) (134,544)
Beginning balance (in shares) at Dec. 31, 2021   46,958,776      
Beginning balance at Dec. 31, 2021 118,900 $ 5 259,859 (221) (140,743)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Unrealized gain (loss) on marketable securities (949)        
Net income (loss) (19,014)        
Ending balance (in shares) at Jun. 30, 2022   55,384,868      
Ending balance at Jun. 30, 2022 125,716 $ 6 286,637 (1,170) (159,757)
Beginning balance (in shares) at Mar. 31, 2022   54,347,564      
Beginning balance at Mar. 31, 2022 146,987 $ 6 282,436 (911) (134,544)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock upon exercise of stock options (in shares)   9,135      
Issuance of common stock upon exercise    of stock options 11   11    
Issuance of common stock under stock purchase plan (in shares)   2,234      
Issuance of common stock under stock purchase plan 7   7    
Issuance of common stock upon public offering, net of issuance costs (in shares)   1,025,935      
Issuance of common stock upon public offering, net of issuance costs 2,110 $ 0 2,110    
Stock-based compensation expense 2,073   2,073    
Unrealized gain (loss) on marketable securities (259)     (259)  
Net income (loss) (25,213)       (25,213)
Ending balance (in shares) at Jun. 30, 2022   55,384,868      
Ending balance at Jun. 30, 2022 $ 125,716 $ 6 286,637 (1,170) (159,757)
Beginning balance (in shares) at Dec. 31, 2022 60,578,956 60,578,956      
Beginning balance at Dec. 31, 2022 $ 93,403 $ 6 298,741 (1,015) (204,329)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock under stock purchase plan (in shares)   137,917      
Issuance of common stock under stock purchase plan 77   77    
Stock-based compensation expense 1,646   1,646    
Unrealized gain (loss) on marketable securities 446     446  
Net income (loss) (19,741)       (19,741)
Ending balance (in shares) at Mar. 31, 2023   60,716,873      
Ending balance at Mar. 31, 2023 $ 75,831 $ 6 300,464 (569) (224,070)
Beginning balance (in shares) at Dec. 31, 2022 60,578,956 60,578,956      
Beginning balance at Dec. 31, 2022 $ 93,403 $ 6 298,741 (1,015) (204,329)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Unrealized gain (loss) on marketable securities 794        
Net income (loss) $ (47,933)        
Ending balance (in shares) at Jun. 30, 2023 60,730,274 60,730,274      
Ending balance at Jun. 30, 2023 $ 49,178 $ 6 301,655 (221) (252,262)
Beginning balance (in shares) at Mar. 31, 2023   60,716,873      
Beginning balance at Mar. 31, 2023 75,831 $ 6 300,464 (569) (224,070)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock under stock purchase plan (in shares)   13,401      
Issuance of common stock under stock purchase plan 5   5    
Stock-based compensation expense 1,186   1,186    
Unrealized gain (loss) on marketable securities 348     348  
Net income (loss) $ (28,192)       (28,192)
Ending balance (in shares) at Jun. 30, 2023 60,730,274 60,730,274      
Ending balance at Jun. 30, 2023 $ 49,178 $ 6 $ 301,655 $ (221) $ (252,262)