XML 20 R5.htm IDEA: XBRL DOCUMENT v3.24.3
CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Accumulated Other Comprehensive Income
Beginning balance (in shares) at Dec. 31, 2022   198,575,016      
Beginning balance at Dec. 31, 2022 $ 98,329 $ 20 $ 878,500 $ (780,137) $ (54)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock under employee stock purchase plan (in shares)   435,708      
Issuance of common stock under employee stock purchase plan 808   808    
Issuance of common stock for services (in shares)   86,095      
Issuance of common stock for services 337   337    
Issuance of common stock upon exercise of options (in shares)   127,221      
Issuance of common stock upon exercise of options 251   251    
Issuance of common stock upon vesting of restricted stock units (in shares)   634,351      
Issuance of common stock in at-the-market offerings (in shares)   32,274,741      
Issuance of common stock in at-the-market offerings 119,248 $ 3 119,245    
Stock-based compensation 9,600   9,600    
Unrealized gains (losses) on available-for-sale securities (147)       (147)
Net income (loss) (37,265)     (37,265)  
Ending balance (in shares) at Sep. 30, 2023   232,133,132      
Ending balance at Sep. 30, 2023 191,161 $ 23 1,008,741 (817,402) (201)
Beginning balance (in shares) at Jun. 30, 2023   217,862,921      
Beginning balance at Jun. 30, 2023 123,161 $ 22 947,380 (824,031) (210)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock under employee stock purchase plan (in shares)   269,739      
Issuance of common stock under employee stock purchase plan 670   670    
Issuance of common stock upon exercise of options (in shares)   28,227      
Issuance of common stock upon exercise of options 40   40    
Issuance of common stock upon vesting of restricted stock units (in shares)   211,277      
Issuance of common stock in at-the-market offerings (in shares)   13,760,968      
Issuance of common stock in at-the-market offerings 57,163 $ 1 57,162    
Stock-based compensation 3,489   3,489    
Unrealized gains (losses) on available-for-sale securities 9       9
Net income (loss) 6,629     6,629  
Ending balance (in shares) at Sep. 30, 2023   232,133,132      
Ending balance at Sep. 30, 2023 191,161 $ 23 1,008,741 (817,402) (201)
Beginning balance (in shares) at Dec. 31, 2023   232,453,190      
Beginning balance at Dec. 31, 2023 166,816 $ 23 1,012,773 (846,204) 224
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock under employee stock purchase plan (in shares)   479,609      
Issuance of common stock under employee stock purchase plan 2,227   2,227    
Issuance of common stock for services (in shares)   40,549      
Issuance of common stock for services $ 257   257    
Issuance of common stock upon exercise of options (in shares) 2,228,000 2,227,627      
Issuance of common stock upon exercise of options $ 5,299 $ 1 5,298    
Issuance of common stock upon vesting of restricted stock units (in shares)   1,689,456      
Stock-based compensation 27,518   27,518    
Unrealized gains (losses) on available-for-sale securities (39)       (39)
Net income (loss) (43,781)     (43,781)  
Ending balance (in shares) at Sep. 30, 2024   236,890,431      
Ending balance at Sep. 30, 2024 158,297 $ 24 1,048,073 (889,985) 185
Beginning balance (in shares) at Jun. 30, 2024   235,401,398      
Beginning balance at Jun. 30, 2024 146,990 $ 23 1,036,244 (889,176) (101)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock under employee stock purchase plan (in shares)   226,297      
Issuance of common stock under employee stock purchase plan 1,189   1,189    
Issuance of common stock upon exercise of options (in shares)   663,358      
Issuance of common stock upon exercise of options 1,508 $ 1 1,507    
Issuance of common stock upon vesting of restricted stock units (in shares)   599,378      
Stock-based compensation 9,133   9,133    
Unrealized gains (losses) on available-for-sale securities 286       286
Net income (loss) (809)     (809)  
Ending balance (in shares) at Sep. 30, 2024   236,890,431      
Ending balance at Sep. 30, 2024 $ 158,297 $ 24 $ 1,048,073 $ (889,985) $ 185