Note 1 - Summary of Significant Accounting Policies - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Cost of Goods Sold	$ 21,411	$ 24,400	$ 68,519	$ 72,336
General and Administrative Expenses	$ 2,045	2,480	$ 7,247	6,654
Previously Reported [Member]
Cost of Goods Sold		24,717		73,171
General and Administrative Expenses		$ 2,164		$ 5,819