XML 14 R3.htm IDEA: XBRL DOCUMENT v3.21.2
BALANCE SHEETS - Parenthetical - $ / shares
Sep. 30, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 300,000,000 300,000,000
Common stock, shares issued (in shares) 42,241,981 41,779,183
Common stock, shares outstanding (in shares) 42,241,981 41,767,431