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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021   71,462,094      
Beginning balance at Dec. 31, 2021 $ 233,917 $ 7 $ 497,128 $ (5,687) $ (257,531)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (23,154)       (23,154)
Issuance of common stock to directors (in shares)   2,395      
Vesting of restricted stock units (in shares)   47,038      
Exercise of stock options (in shares)   815,833      
Exercise of stock options 24,404   24,404    
Stock-based compensation expense 6,943   6,943    
Other comprehensive income (loss) 646     646  
Ending balance (in shares) at Mar. 31, 2022   72,327,360      
Ending balance at Mar. 31, 2022 242,756 $ 7 528,475 (5,041) (280,685)
Beginning balance (in shares) at Dec. 31, 2021   71,462,094      
Beginning balance at Dec. 31, 2021 233,917 $ 7 497,128 (5,687) (257,531)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (116,503)        
Ending balance (in shares) at Sep. 30, 2022   72,540,895      
Ending balance at Sep. 30, 2022 172,942 $ 7 549,760 (2,790) (374,035)
Beginning balance (in shares) at Mar. 31, 2022   72,327,360      
Beginning balance at Mar. 31, 2022 242,756 $ 7 528,475 (5,041) (280,685)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (49,354)       (49,354)
Issuance of common stock to directors (in shares)   2,565      
Vesting of restricted stock units (in shares)   52,634      
Exercise of stock options (in shares)   61,955      
Exercise of stock options 626   626    
Stock-based compensation expense 9,148   9,148    
Other comprehensive income (loss) 1,884     1,884  
Ending balance (in shares) at Jun. 30, 2022   72,444,514      
Ending balance at Jun. 30, 2022 205,060 $ 7 538,249 (3,157) (330,039)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (43,996)       (43,996)
Issuance of common stock to directors (in shares)   4,613      
Vesting of restricted stock units (in shares)   67,164      
Exercise of stock options (in shares)   24,604      
Exercise of stock options 175   175    
Stock-based compensation expense 11,336   11,336    
Other comprehensive income (loss) 367     367  
Ending balance (in shares) at Sep. 30, 2022   72,540,895      
Ending balance at Sep. 30, 2022 172,942 $ 7 549,760 (2,790) (374,035)
Beginning balance (in shares) at Dec. 31, 2022   72,817,887      
Beginning balance at Dec. 31, 2022 145,700 $ 7 561,390 (7,246) (408,451)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (36,829)       (36,829)
Issuance of common stock to directors (in shares)   6,713      
Vesting of restricted stock units (in shares)   111,296      
Vesting of restricted stock units (2,959)   (2,959)    
Exercise of stock options (in shares)   19,483      
Exercise of stock options 131   131    
Stock-based compensation expense 11,056   11,056    
Other comprehensive income (loss) (700)     (700)  
Ending balance (in shares) at Mar. 31, 2023   72,955,379      
Ending balance at Mar. 31, 2023 116,399 $ 7 569,618 (7,946) (445,280)
Beginning balance (in shares) at Dec. 31, 2022   72,817,887      
Beginning balance at Dec. 31, 2022 145,700 $ 7 561,390 (7,246) (408,451)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (101,435)        
Ending balance (in shares) at Sep. 30, 2023   73,224,030      
Ending balance at Sep. 30, 2023 68,101 $ 7 588,029 (10,049) (509,886)
Beginning balance (in shares) at Mar. 31, 2023   72,955,379      
Beginning balance at Mar. 31, 2023 116,399 $ 7 569,618 (7,946) (445,280)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (42,355)       (42,355)
Issuance of common stock to directors (in shares)   4,928      
Vesting of restricted stock units (in shares)   99,836      
Vesting of restricted stock units (1,816)   (1,816)    
Exercise of stock options (in shares)   53,190      
Exercise of stock options 428   428    
Stock-based compensation expense 11,148   11,148    
Other comprehensive income (loss) (3,172)     (3,172)  
Ending balance (in shares) at Jun. 30, 2023   73,113,333      
Ending balance at Jun. 30, 2023 80,632 $ 7 579,378 (11,118) (487,635)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (22,251)       (22,251)
Issuance of common stock to directors (in shares)   3,936      
Vesting of restricted stock units (in shares)   92,722      
Vesting of restricted stock units (2,465)   (2,465)    
Exercise of stock options (in shares)   14,039      
Exercise of stock options 105   105    
Stock-based compensation expense 11,011   11,011    
Other comprehensive income (loss) 1,069     1,069  
Ending balance (in shares) at Sep. 30, 2023   73,224,030      
Ending balance at Sep. 30, 2023 $ 68,101 $ 7 $ 588,029 $ (10,049) $ (509,886)