Note 1 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Share-based Payment Arrangement, Option, Activity [Table Text Block]

	Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding - January 1, 2020		372,200		$	3.85
Granted		11,300			2.95
Exercised		-
Cancelled		(16,667	)		3.65
Outstanding - September 30, 2020		366,833		$	3.83		7.88	$	317
Exercisable - September 30, 2020		181,640		$	3.72		7.44	$	176

Schedule of Inventory, Current [Table Text Block]

	September 30,			December 31,
	2020			2019
Raw Materials	$	15,314		$	15,245
Work in Process		607			479
Finished Goods		459			41
Reserves		(1,884	)		(1,486	)
Total	$	14,496		$	14,279

Schedule of Finite-Lived Intangible Assets [Table Text Block]

			September 30, 2020
			Gross
			Carrying		Accumulated		Net Book
	Years		Amount		Amortization		Value
Customer Relationships		9	$	1,302	$	759	$	543
Intellectual Property		3		100		100		-
Trade Names		20		814		214		600
Patents		7		67		-		67
Totals			$	2,283	$	1,073	$	1,210

			December 31, 2019
			Gross
			Carrying		Accumulated		Net Book
	Years		Amount		Amortization		Value
Customer Relationships		9	$	1,302	$	651	$	651
Intellectual Property		3		100		95		5
Trade Names		20		814		183		631
Patents		7		56		-		56
Totals			$	2,272	$	929	$	1,343

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Year	Amount
Remainder of 2020	$	46
2021		186
2022		185
2023		185
2024		113
Thereafter		428
Total	$	1,143