XML 22 R3.htm IDEA: XBRL DOCUMENT v3.20.4
Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Stockholders’ equity    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 130,000,000 130,000,000
Common stock, shares issued (in shares) 52,868,482 52,868,482
Common stock, shares outstanding (in shares) 52,533,348 52,533,348