Note 1 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2023

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
Outstanding - January 1, 2023		452,700		$	5.97
Granted		29,000			9.37
Exercised		(36,044	)		4.12
Cancelled		(43,956	)		7.50
Outstanding - June 30, 2023		401,700		$	6.21		6.52	$	1,510
Exercisable - June 30, 2023		244,400		$	4.43		5.41	$	1,311

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

	Shares			Weighted- Average Grant Date Fair Value		Weighted- Average Remaining Contractual Term (in years)		Aggregate Fair Value
Outstanding - January 1, 2023		21,000		$	12.00
Granted		18,000			9.37
Vested		(10,500	)		12.00
Forfeited		(6,000	)		10.93
Outstanding - June 30, 2023		22,500		$	10.18		9.48	$	73

Schedule of Inventory, Current [Table Text Block]

	June 30,			December 31,
	2023			2022
Raw Materials	$	20,461		$	21,673
Work in Process		960			1,238
Finished Goods		744			671
Reserves		(1,087	)		(1,144	)
Total	$	21,078		$	22,438

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

	Customer Relationships		Patents		Total
Balance at January 1, 2022	$	360	$	141	$	501
Additions		-		71		71
Amortization		144		6		150
Balance at December 31, 2022		216		206		422
Amortization		72		8		80
Balance at June 30, 2023	$	144	$	198	$	342

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

Year	Amount
Remainder of 2023	$	80
2024		87
2025		14
2026		14
Thereafter		37
Total	$	232

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

Condensed Consolidated Statements of Cash Flows
	June 30, 2022
CASH FLOWS FROM FINANCING ACTIVITIES	As reported			Adjustment			As revised
Net Proceeds from Line of Credit		2,394			(2,394	)		-
Proceeds from Line of Credit		-			58,440			58,440
Payments to Line of Credit		-			(56,046	)		(56,046	)
Principal Payments on Long-Term Debt		-			-			-
Principal Payments on Financing Leases		(329	)		-			(329	)
Stock Option Exercises		33			-			33
Net Cash Provided by Financing Activities		2,098			-			2,098