XML 22 R5.htm IDEA: XBRL DOCUMENT v3.23.1
Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2020 $ 143,906 $ 49 $ 398,311 $ (23) $ (254,431)
Beginning balance, shares at Dec. 31, 2020   48,533,135      
Issuance of common stock 86,097 $ 10 86,087    
Stock Issued During Period, Shares, New Issues   9,599,998      
Vesting of restricted stock, shares   218,464      
Issuance of common stock upon exercise of stock options 3,363   3,363    
Issuance of common stock upon exercise of stock options, shares   421,997      
Issuance of common stock under Employee Stock Purchase Plan 141   141    
Issuance of common stock under Employee Stock Purchase Plan, shares   25,563      
Stock-based compensation expense 10,308   10,308    
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax (7)     (7)  
Net loss (71,136)       (71,136)
Ending balance at Dec. 31, 2021 172,672 $ 59 498,210 (30) (325,567)
Ending balance, shares at Dec. 31, 2021   58,799,157      
Issuance of common stock 2,763 $ 2 2,761    
Stock Issued During Period, Shares, New Issues   1,644,200      
Vesting of restricted stock, shares   76,539      
Issuance of common stock upon exercise of stock options $ 115   115    
Issuance of common stock upon exercise of stock options, shares 0 120,013      
Stock-based compensation expense $ 7,021   7,021    
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax (151)     (151)  
Net loss (76,462)       (76,462)
Ending balance at Dec. 31, 2022 $ 105,958 $ 61 $ 508,107 $ (181) $ (402,029)
Ending balance, shares at Dec. 31, 2022   60,639,909