Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) (Details)

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Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]      
Foreign currency items, Balance at Beginning $ 265 $ (388) $ (465)
Foreign currency items, Net current period change 134 653 77
Foreign currency items, Balance at End 399 265 (388)
Unrealized gain (losses) on investments, Balance at Beginning (47) (113)
Unrealized gain (losses) on investments, Net current period change 47 66
Unrealized gain (losses) on investments, Balance at End   (47)
Accumulated other comprehensive income, Balance at Beginning 265 (435) (578)
Accumulated other comprehensive income, Net current period change 134 700 143
Accumulated other comprehensive income, Balance at End $ 399 $ 265 $ (435)