Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.2
Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Statement of Stockholders' Equity [Abstract]        
Marketable debt securities, net realized gain/loss $ 1 $ 86 $ 4 $ 100