Annual report pursuant to Section 13 and 15(d)

Statements of Operations (Parenthetical)

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Statements of Operations (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Statement [Abstract]      
Revenue from related parties $ 0 $ 2,813 $ 22,536