Note 1 - Summary of Significant Accounting Policies - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cost of Goods Sold	$ 26,597	$ 23,736	$ 47,108	$ 47,936
General and Administrative Expenses	$ 2,418	1,946	$ 5,214	4,174
Previously Reported [Member]
Cost of Goods Sold		24,020		48,455
General and Administrative Expenses		$ 1,662		$ 3,655