Annual report pursuant to Section 13 and 15(d)

Statements of Operations (Parenthetical)

v3.20.4
Statements of Operations (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Statement [Abstract]      
Revenue from related parties $ 2,813 $ 22,536 $ 18,966