Note 7 - Inventories - Schedule of Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Raw materials	$ 20,780	$ 14,764
Work-in process	1,507	2,467
Finished products	2,169	2,282
Inventories	24,456	19,513
Domestic Inventories [Member]
Finished products		2,149
Inventories		15,019
Foreign Inventories [Member]
Work-in process		968
Finished products		133
Inventories		4,494
Domestic Inventories [Member]
Raw materials	15,201	11,371
Work-in process	760	1,499
Finished products	1,892
Inventories	17,853
Foreign Inventories [Member]
Raw materials	5,579	$ 3,393
Work-in process	747
Finished products	277
Inventories	$ 6,603

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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