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Derivative Instruments, (Loss) Gain on Derivative Instruments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Net Gain (Loss) on Derivative Instruments [Abstract]    
Foreign exchange contracts- change in fair value $ 0 $ 17
Interest rate swap - change in fair value 0 (49)
Remeasurement of related contract receivables and billings in excess of revenue earned 19 15
Gain (loss) on derivative instruments, net $ 19 $ (17)