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CONDENSED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Total
Balance at the beginning at Dec. 31, 2019 $ 27 $ 402,529 $ (38) $ (81,034) $ 321,484
Balance at the beginning (in shares) at Dec. 31, 2019 27,499,260        
Increase (Decrease) in Stockholders' Deficit          
Stock based compensation   1,008     1,008
Issuance of common stock $ 1 36     37
Issuance of common stock (in shares) 17,142        
Unrealized loss on marketable securities, net of tax $0     (505)   (505)
Net (loss) income       9,733 9,733
Balance at the end at Mar. 31, 2020 $ 28 403,573 (543) (71,301) 331,757
Balance at the end (in shares) at Mar. 31, 2020 27,516,402        
Balance at the beginning at Dec. 31, 2020 $ 28 410,551 779 (117,637) $ 293,721
Balance at the beginning (in shares) at Dec. 31, 2020 27,568,802       27,568,802
Increase (Decrease) in Stockholders' Deficit          
Stock based compensation   2,508     $ 2,508
Issuance of common stock   63     63
Issuance of common stock (in shares) 35,615        
Unrealized loss on marketable securities, net of tax $0     (600)   (600)
Net (loss) income       (16,533) (16,533)
Balance at the end at Mar. 31, 2021 $ 28 $ 413,122 $ 179 $ (134,170) $ 279,159
Balance at the end (in shares) at Mar. 31, 2021 27,604,417       27,604,417