Note 13 - Stock-based Compensation Plan (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Years Ended December 31,
(in thousands)	2024		2023
Cost of revenues	$	144	$	104
Selling expense		50		41
Engineering and product development expense		29		19
General and administrative expense		1,634		1,883
Total stock-based compensation expense	$	1,857	$	2,047

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Years Ended December 31,
	2024			2023
Risk-free interest rate		3.98	%		3.93	%
Dividend yield		-			-
Expected common stock market price volatility factor		.57			.57
Weighted average expected life of stock options (years)		6.25			6.25

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

						Weighted
				Weighted		Average		Aggregate
				Average		Remaining		Intrinsic
	Number			Exercise		Contractual		Value
Stock Options	of Shares			Price		Term (yrs)		(in thousands)
Outstanding, January 1, 2024		505,006		$	10.46
Granted		165,364			11.33
Exercised		(30,080	)		5.41
Canceled		(37,697	)		11.4
Outstanding, December 31, 2024		602,593		$	10.92		7.3	$	242
Exercisable		260,853		$	9.92		6.2	$	217
Expected to vest		341,740		$	11.69		8.2	$	25

Nonvested Restricted Stock Shares Activity [Table Text Block]

	Number of Shares			Weighted Average Grant Date Fair Value
Unvested shares outstanding, January 1, 2024		189,784		$	11.51
Granted		138,838			11.38
Vested		(103,666	)		9.86
Forfeited		(16,174	)		12.35
Unvested shares outstanding, December 31, 2024		208,782		$	12.18