Quarterly report pursuant to Section 13 or 15(d)

Condensed Statements of Operations (Parenthetical) (Unaudited)

v3.19.1
Condensed Statements of Operations (Parenthetical) (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Income Statement [Abstract]    
Revenue from related parties $ 4,916 $ 4,084