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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock
Additional Paid-In Capital
Retained Earnings (Accumulated Deficit).
Total
Balances at the beginning at Dec. 31, 2021 $ 20 $ 119,962 $ 8,245 $ 128,227
Balances at the beginning (in shares) at Dec. 31, 2021 19,877,786      
Increase (Decrease) in Stockholders' Equity        
Stock-based compensation   7,681   7,681
Exercise of common stock options and vesting of performance and restricted stock units   152   152
Exercise of common stock options and vesting of performance and restricted stock units (in shares) 192,644      
Common shares issued for employee stock purchase plan   824   824
Common shares issued for employee stock purchase plan (in shares) 85,274      
Net Income (loss) for the period     (22,487) (22,487)
Balances at the end at Sep. 30, 2022 $ 20 128,619 (14,242) 114,397
Balances at the end (in shares) at Sep. 30, 2022 20,155,704      
Balances at the beginning at Jun. 30, 2022 $ 20 126,059 (11,963) 114,116
Balances at the beginning (in shares) at Jun. 30, 2022 20,132,145      
Increase (Decrease) in Stockholders' Equity        
Stock-based compensation   2,560   2,560
Exercise of common stock options and vesting of performance and restricted stock units (in shares) 23,559      
Net Income (loss) for the period     (2,279) (2,279)
Balances at the end at Sep. 30, 2022 $ 20 128,619 (14,242) 114,397
Balances at the end (in shares) at Sep. 30, 2022 20,155,704      
Balances at the beginning at Dec. 31, 2022 $ 20 131,001 (9,621) 121,400
Balances at the beginning (in shares) at Dec. 31, 2022 20,252,677      
Increase (Decrease) in Stockholders' Equity        
Stock-based compensation   5,597   5,597
Exercise of common stock options and vesting of performance and restricted stock units   13   13
Exercise of common stock options and vesting of performance and restricted stock units (in shares) 249,064      
Sale of common stock from follow-on public offering, net of offering expenses $ 3 34,622   34,625
Sale of common stock from follow-on public offering, net of offering expenses (in shares) 2,875,000      
Common shares issued for employee stock purchase plan   882   882
Common shares issued for employee stock purchase plan (in shares) 120,816      
Net Income (loss) for the period     20,313 20,313
Balances at the end at Sep. 30, 2023 $ 23 172,115 10,692 182,830
Balances at the end (in shares) at Sep. 30, 2023 23,497,557      
Balances at the beginning at Jun. 30, 2023 $ 23 170,347 (11,607) 158,763
Balances at the beginning (in shares) at Jun. 30, 2023 23,458,302      
Increase (Decrease) in Stockholders' Equity        
Stock-based compensation   1,766   1,766
Exercise of common stock options and vesting of performance and restricted stock units   2   2
Exercise of common stock options and vesting of performance and restricted stock units (in shares) 39,255      
Net Income (loss) for the period     22,299 22,299
Balances at the end at Sep. 30, 2023 $ 23 $ 172,115 $ 10,692 $ 182,830
Balances at the end (in shares) at Sep. 30, 2023 23,497,557