Note 13 - Stock-based Compensation (Tables)

3 Months Ended

Jun. 27, 2021

Notes Tables

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

	Three-Month Periods Ended
	June 27, 2021					June 28, 2020
	Weighted-					Weighted-
	Average		Number of			Average		Number of
	Exercise		Options			Exercise		Options
	Price		Outstanding			Price		Outstanding
Outstanding at Beginning of Period	$	6.84		567,500		$	6.86		517,500
Granted		7.98		158,000			4.92		110,000
Exercised		4.84		(30,000	)		-		-
Outstanding at End of Period		7.18		695,500			6.52		627,500
Exercisable at End of Period		7.19		407,500			7.15		455,000

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

	Three-Month Periods Ended
	June 27, 2021			June 28, 2020
Number of options issued		158,000			110,000
Grant date	June 9, 2021			June 10, 2020
Dividend yield		4.00	%		6.50	%
Expected volatility		35.00	%		30.00	%
Risk free interest rate		0.530	%		0.275	%
Contractual term (years)		10.00			10.00
Expected term (years)		4.00			4.00
Forfeiture rate		5.00	%		5.00	%
Exercise price (grant-date closing price) per option	$	7.98		$	4.92
Fair value per option	$	1.61		$	0.56

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

	Three-Month Period Ended June 27, 2021						Three-Month Period Ended June 28, 2020
	Cost of		Marketing &				Cost of		Marketing &
	Products		Administrative		Total		Products		Administrative		Total
Options Granted in Fiscal Year	Sold		Expenses		Expense		Sold		Expenses		Expense
2019	$	-	$	-	$	-	$	3	$	3	$	6
2020		3		4		7		3		5		8
2021		4		16		20		-		1		1
2022		2		4		6		-		-		-
Total stock option compensation	$	9	$	24	$	33	$	6	$	9	$	15

	Three-Month Period Ended June 27, 2021						Three-Month Period Ended June 28, 2020
			Non-employee		Total				Non-employee		Total
Stock Granted in Fiscal Year	Employees		Directors		Expense		Employees		Directors		Expense
2019	$	-	$	-	$	-	$	18	$	19	$	37
2020		-		30		30		-		30		30
2021		22		30		52		4		-		4
2022		17		-		17		-		-		-
Total stock grant compensation	$	39	$	60	$	99	$	22	$	49	$	71

Schedule of Nonvested Share Activity [Table Text Block]

Number of Shares	Fair Value per Share		Grant Date
41,452	$	5.79	August 12, 2020
46,512		5.16	August 14, 2019
28,000		5.43	August 8, 2018

Number of Shares	Fair Value per Share		Grant Date	Vesting Date
25,000	$	5.86	January 18, 2019	January 18, 2021
20,000		4.92	June 10, 2020	June 10, 2022
10,000		7.60	February 22, 2021	February 22, 2023
25,000		7.98	June 9, 2021	June 9, 2022