Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Supplemental cash payment information:
Interest paid	$ 20	$ 595
Income taxes paid, net of refunds	(5,927)	887
Supplemental schedule of non-cash investing and financing activities:
Equity issued - acquisition of JP3	8,538	0
Accrued capital expenditures	$ 71	$ 141