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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Beginning balance at Jan. 31, 2022 $ 183,215   $ 525,392 $ (195) $ (341,982)
Beginning balance (in shares) at Jan. 31, 2022   43,847,484      
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock upon exercise of stock options 3,367   3,367    
Issuance of common stock upon exercise of stock options (in shares)   560,931      
Issuance of common stock in connection with employee stock purchase plan 3,525   3,525    
Issuance of common stock in connection with employee stock purchase plan (in shares)   237,499      
Vesting of restricted stock units (in shares)   125,803      
Stock-based compensation 12,330   12,330    
Net unrealized gains (losses) on investments (848)     (848)  
Net loss (35,203)       (35,203)
Ending balance at Jul. 31, 2022 166,386 $ 0 544,614 (1,043) (377,185)
Ending balance (in shares) at Jul. 31, 2022   44,771,717      
Beginning balance at Apr. 30, 2022 174,284   536,981 (881) (361,816)
Beginning balance (in shares) at Apr. 30, 2022   44,537,296      
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock upon exercise of stock options 753   753    
Issuance of common stock upon exercise of stock options (in shares)   108,618      
Vesting of restricted stock units (in shares)   125,803      
Stock-based compensation 6,880   6,880    
Net unrealized gains (losses) on investments (162)     (162)  
Net loss (15,369)       (15,369)
Ending balance at Jul. 31, 2022 166,386 $ 0 544,614 (1,043) (377,185)
Ending balance (in shares) at Jul. 31, 2022   44,771,717      
Beginning balance at Jan. 31, 2023 $ 150,264   561,547 (807) (410,476)
Beginning balance (in shares) at Jan. 31, 2023 45,432,029 45,432,029      
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock upon exercise of stock options $ 4,650   4,650    
Issuance of common stock upon exercise of stock options (in shares)   767,552      
Issuance of common stock in connection with employee stock purchase plan 847   847    
Issuance of common stock in connection with employee stock purchase plan (in shares)   74,113      
Vesting of restricted stock units (in shares)   790,220      
Stock-based compensation 21,801   21,801    
Net unrealized gains (losses) on investments 506     506  
Net loss (42,526)       (42,526)
Ending balance at Jul. 31, 2023 $ 135,542 $ 0 588,845 (301) (453,002)
Ending balance (in shares) at Jul. 31, 2023 47,063,914 47,063,914      
Beginning balance at Apr. 30, 2023 $ 140,950   573,791 (490) (432,351)
Beginning balance (in shares) at Apr. 30, 2023   46,155,499      
Increase (Decrease) in Stockholders' Equity          
Issuance of common stock upon exercise of stock options 2,733   2,733    
Issuance of common stock upon exercise of stock options (in shares)   378,175      
Vesting of restricted stock units (in shares)   530,240      
Stock-based compensation 12,321   12,321    
Net unrealized gains (losses) on investments 189     189  
Net loss (20,651)       (20,651)
Ending balance at Jul. 31, 2023 $ 135,542 $ 0 $ 588,845 $ (301) $ (453,002)
Ending balance (in shares) at Jul. 31, 2023 47,063,914 47,063,914