Note 1 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2021

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, 2021		362,640		$	3.96
Granted		3,000			5.76
Exercised		(1,000	)		3.70
Cancelled		(9,140	)		3.41
Outstanding - June 30, 2021		355,500		$	3.99		7.30	$	1,422
Exercisable - June 30, 2021		194,100		$	3.71		6.77	$	827

Schedule of Inventory, Current [Table Text Block]

	June 30,			December 31,
	2021			2020
Raw Materials	$	17,993		$	14,865
Work in Process		1,369			969
Finished Goods		442			242
Reserves		(1,504	)		(2,159	)
Total	$	18,301		$	13,917

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

			June 30, 2021
			Gross
			Carrying		Accumulated		Net Book
	Years		Amount		Amortization		Value
Customer Relationships		9	$	1,302	$	868	$	434
Intellectual Property		3		100		100		-
Trade Names		20		814		244		570
Patents		7		126		-		126
Totals			$	2,342	$	1,212	$	1,130

			December 31, 2020
			Gross
			Carrying		Accumulated		Net Book
	Years		Amount		Amortization		Value
Customer Relationships		9	$	1,302	$	795	$	507
Intellectual Property		3		100		100		-
Trade Names		20		814		225		589
Patents		7		77		-		77
Totals			$	2,293	$	1,120	$	1,173

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

Year	Amount
Remainder of 2021	$	93
2022		186
2023		185
2024		113
2025		41
Thereafter		386
Total	$	1,004

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

	Three Months Ended June 30, 2020				Six Months Ended June 30, 2020
	Previously		After		Previously		After
	Reported		Reclassification		Reported		Reclassification
Cost of Goods Sold	$	24,020	$	23,736	$	48,455	$	47,936
General and Administrative Expenses		1,662		1,946		3,655		4,174