Note 16 - Supplemental Cash Flow Information - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Interest paid	$ 7,930	$ 151
Federal, state, and local income taxes paid, net	8,638	4,669
Change in contract receivables, net	4,108	(424)
Change in contract liabilities, net	(4,520)	836
Property, plant, and equipment purchases in accounts payable	$ 2,191	$ 2,316