Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	2020			2019
Raw materials	$	14,865		$	15,245
Work in process		969			479
Finished goods		242			41
Reserves		(2,159	)		(1,486	)
Total	$	13,917		$	14,279

Property, Plant and Equipment [Table Text Block]

Buildings (in years)	39
Leasehold improvements (in years)	3 - 15
Manufacturing equipment (in years)	3 - 7
Office and other equipment (in years)	3 - 7

	2020			2019
Land	$	176		$	360
Building and Leasehold Improvements		5,999			9,660
Manufacturing Equipment		22,685			21,908
Office and Other Equipment		7,148			7,192
Accumulated Depreciation and Amortization		(29,582	)		(29,539	)
Total Property and Equipment, Net	$	6,426		$	9,581

Revenue from External Customers by Products and Services [Table Text Block]

	2020		2019
Medical	$	55,098	$	62,612
Aerospace and Defense		20,624		18,207
Industrial		28,384		35,514
Total Net Sales	$	104,106	$	116,333

Schedule of Long-lived Assets by Geographical Areas [Table Text Block]

	United States		Mexico		China		Total
December 31, 2020
Property and equipment, net	$	5,057	$	681	$	688	$	6,426
Operating Lease Assets	$	5,574		3,117		307	$	8,998
Other assets	$	1,173		-		-	$	1,173
December 31, 2019
Property and equipment, net	$	8,024	$	961	$	596	$	9,581
Operating Lease Assets	$	1,213		3,425		189	$	4,827
Other assets	$	3,718		-		-	$	3,718