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Condensed Consolidated Statements of Stockholder's Equity - USD ($)
$ in Thousands
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive (Loss) Gain
Accumulated Deficit
Total
Balance, Beginning at Dec. 31, 2020   $ 563,389 $ 28 $ (283,811) $ 279,606
Balance, Beginning (in shares) at Dec. 31, 2020 43,745,465        
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock under equity incentive and employee stock purchase plans   1,316     1,316
Issuance of common stock under equity incentive and employee stock purchase plans (in shares) 200,841        
Shares withheld for net settlement of tax withholding upon vesting of restricted stock units   (189)     (189)
Shares withheld for net settlement of tax withholding upon vesting of restricted stock units (in shares) (7,060)        
Stock-based compensation expense   2,660     2,660
Other comprehensive loss     (61)   (61)
Net loss       (23,998) (23,998)
Balance, Ending at Mar. 31, 2021   567,176 (33) (307,809) 259,334
Balance, Ending (in shares) at Mar. 31, 2021 43,939,246        
Balance, Beginning at Dec. 31, 2021   709,682 (299) (409,362) $ 300,021
Balance, Beginning (in shares) at Dec. 31, 2021 47,838,330       47,838,330
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock pursuant to at-the-market offering, net of issuance costs   14,553     $ 14,553
Issuance of common stock pursuant to at-the-market offering, net of issuance costs (in shares) 422,367        
Issuance of common stock under equity incentive and employee stock purchase plans   2,558     2,558
Issuance of common stock under equity incentive and employee stock purchase plans (in shares) 299,131        
Shares withheld for net settlement of tax withholding upon vesting of restricted stock units   (186)     (186)
Shares withheld for net settlement of tax withholding upon vesting of restricted stock units (in shares) (7,726)        
Stock-based compensation expense   5,935     5,935
Other comprehensive loss     (173)   (173)
Net loss       (20,930) (20,930)
Balance, Ending at Mar. 31, 2022   $ 732,542 $ (472) $ (430,292) $ 301,778
Balance, Ending (in shares) at Mar. 31, 2022 48,552,102       48,552,102