Note 1 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2022

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, 2022		387,500		$	4.57
Granted		90,000			11.13
Exercised		(19,800	)		3.40
Cancelled		(8,000	)		3.38
Outstanding - September 30, 2022		449,700		$	5.93		7.10	$	2,137
Exercisable - September 30, 2022		213,500		$	3.95		5.90	$	1,407

Schedule of Inventory, Current [Table Text Block]

	September 30,			December 31,
	2022			2021
Raw Materials	$	22,520		$	18,492
Work in Process		1,719			1,678
Finished Goods		615			562
Reserves		(1,244	)		(1,298	)
Total	$	23,610		$	19,434

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

	Customer Relationships		Trade Names		Patents		Total
Balance at January 1, 2021	$	507	$	589	$	77	$	1,173
Additions		-		-		64		64
Amortization		147		29		-		176
Abandonment Loss		-		560		-		560
Balance at December 31, 2021		360		-		141		501
Additions		-		-		43		43
Amortization		108		-		3		111
Balance at September 30, 2022	$	252	$	-	$	181	$	433

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

Year	Amount
Remainder of 2022	$	40
2023		159
2024		86
2025		14
Thereafter		49
Total	$	348