XML 15 R5.htm IDEA: XBRL DOCUMENT v3.20.2
CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Accumulated Other Comprehensive (Loss) Income
Total
Balance, amount at Dec. 31, 2018 $ 6 $ 481,357 $ (365,512) $ (38) $ 115,813
Balance, shares at Dec. 31, 2018 62,516,627        
Issuance of common stock under employee stock purchase plan, amount   397     397
Issuance of common stock under employee stock purchase plan, shares 160,744        
Issuance of common stock for services, amount   311     311
Issuance of common stock for services, shares 113,136        
Issuance of common stock upon exercise of options, amount   21     21
Issuance of common stock upon exercise of options, shares 6,964        
Issuance of common stock upon vesting of restricted stock units, shares 85,609        
Stock-based compensation   7,724     7,724
Unrealized (losses) gains on available-for-sale securities       42 42
Net loss     (75,150)   (75,150)
Balance, amount at Sep. 30, 2019 $ 6 489,810 (440,662) 4 49,158
Balance, shares at Sep. 30, 2019 62,883,080        
Balance, amount at Jun. 30, 2019 $ 6 485,718 (417,123) 16 68,617
Balance, shares at Jun. 30, 2019 62,800,869        
Issuance of common stock under employee stock purchase plan, amount   200     200
Issuance of common stock under employee stock purchase plan, shares 77,698        
Issuance of common stock upon exercise of options, amount   13     13
Issuance of common stock upon exercise of options, shares 4,513        
Stock-based compensation   3,879     3,879
Unrealized (losses) gains on available-for-sale securities       (12) (12)
Net loss     (23,539)   (23,539)
Balance, amount at Sep. 30, 2019 $ 6 489,810 (440,662) 4 49,158
Balance, shares at Sep. 30, 2019 62,883,080        
Balance, amount at Dec. 31, 2019 $ 9 647,078 (460,452) 20 186,655
Balance, shares at Dec. 31, 2019 88,817,741        
Issuance of common stock under employee stock purchase plan, amount   834     834
Issuance of common stock under employee stock purchase plan, shares 169,931        
Issuance of common stock for services, amount   310     310
Issuance of common stock for services, shares 42,403        
Issuance of common stock upon exercise of options, amount   759     759
Issuance of common stock upon exercise of options, shares 346,806        
Issuance of common stock upon vesting of restricted stock units, shares 866,528        
Stock-based compensation   8,149     8,149
Unrealized (losses) gains on available-for-sale securities       70 70
Net loss     (65,437)   (65,437)
Balance, amount at Sep. 30, 2020 $ 9 657,130 (525,889) 90 131,340
Balance, shares at Sep. 30, 2020 90,243,409        
Balance, amount at Jun. 30, 2020 $ 9 653,805 (507,781) 317 146,350
Balance, shares at Jun. 30, 2020 89,140,563        
Issuance of common stock under employee stock purchase plan, amount   459     459
Issuance of common stock under employee stock purchase plan, shares 94,127        
Issuance of common stock upon exercise of options, amount   339     339
Issuance of common stock upon exercise of options, shares 142,191        
Issuance of common stock upon vesting of restricted stock units, shares 866,528        
Stock-based compensation   2,527     2,527
Unrealized (losses) gains on available-for-sale securities       (227) (227)
Net loss     (18,108)   (18,108)
Balance, amount at Sep. 30, 2020 $ 9 $ 657,130 $ (525,889) $ 90 $ 131,340
Balance, shares at Sep. 30, 2020 90,243,409