Note 8 - Share-based Compensation Plans (Tables)

12 Months Ended

Dec. 28, 2024

Notes Tables

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

				Weighted		Weighted
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
	Shares			Price		Life (years)		Value
Outstanding at beginning of year		903,500		$	2.66
Granted		225,500		$	2.29
Exercised		(60,000	)	$	1.50
Forfeited		(69,200	)	$	2.47
Expired		(61,500	)	$	2.90
Outstanding at end of year		938,300		$	2.64		7.02	$	17,197
Options exercisable at year-end		499,300		$	2.51		5.76	$	16,742

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

	2024			2023
Risk-free interest rate	4.16%	-	4.33%	3.43%	-	4.24%
Expected life in years	5	-	7.6	5	-	5.5
Expected volatility		61.2%			59.7%
Expected dividend yield		0			0
Weighted average fair value of grants		$2.29			$2.91