Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical)

v3.20.2
Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Statement of Stockholders' Equity [Abstract]        
Marketable debt securities, net realized losses $ 2 $ 1 $ 4 $ 9