Annual report pursuant to Section 13 and 15(d)

Comprehensive Income (Loss) (Details)

v3.20.4
Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Other Comprehensive Loss    
Beginning Balance $ 30,078 $ 41,526
Ending Balance 104,068 30,078
Reclassifications out of accumulated other comprehensive income or loss, net of tax 0 0
Tax effect $ 0 0
Accumulated Other Comprehensive Income (Loss)    
Other Comprehensive Loss    
Beginning Balance   (9)
Net unrealized gains (loss) on marketable securities   $ 9