Note 7 - Inventories (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	Raw materials		Work-in process		Finished products and components		Total
December 31, 2021
Domestic	$	15,201	$	760	$	1,892	$	17,853
Foreign		5,579		747		277		6,603
Total	$	20,780	$	1,507	$	2,169	$	24,456
December 31, 2020
Domestic	$	11,371	$	1,499	$	2,149	$	15,019
Foreign		3,393		968		133		4,494
Total	$	14,764	$	2,467	$	2,282	$	19,513