Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Supplemental cash payment information:
Interest paid	$ 17	$ 20
Income taxes (received) paid	(351)	5,927
Supplemental non-cash activities:
Employee retention credit	2,851	0
Supplemental non-cash investing and financing activities:
Equity issued - acquisition of JP3	$ 0	$ 8,538