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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]              
Cash on deposit with foreign banks $ 3,500       $ 3,500   $ 4,600
Other comprehensive income (loss,) foreign currency translation adjustments 6 $ (24) $ 66 $ (272) (18) $ (206)  
Foreign currency transaction gains and (losses) (200)   (100)   (200) $ 100  
Maximum              
Accumulated Other Comprehensive Income (Loss) [Line Items]              
Other comprehensive income (loss,) foreign currency translation adjustments $ 100   $ 100   $ (100)