Note 13 - Stock-based Compensation (Tables)

6 Months Ended

Sep. 26, 2021

Notes Tables

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

	Six-Month Periods Ended
	September 26, 2021					September 27, 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		4.96		(50,000	)		-		-
Forfeited		4.92		(5,000	)		-		-
Outstanding at End of Period		7.26		670,500			6.52		627,500
Exercisable at End of Period		7.30		387,500			7.15		455,000

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

	Six-Month Periods Ended
	September 26, 2021			September 27, 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 September 26, 2021						Three-Month Period Ended September 27, 2020
	Cost of		Marketing &				Cost of		Marketing &
	Products		Administrative		Total		Products		Administrative		Total
Options Granted in Fiscal Year	Sold		Expenses		Expense		Sold		Expenses		Expense
2020	$	-	$	-	$	-	$	2	$	3	$	5
2021		3		7		10		4		4		8
2022		9		28		37		-		-		-
Total stock option compensation	$	12	$	35	$	47	$	6	$	7	$	13

	Six-Month Period Ended September 26, 2021						Six-Month Period Ended September 27, 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		5		8		13
2021		7		23		30		4		5		9
2022		11		32		43		-		-		-
Total stock option compensation	$	21	$	59	$	80	$	12	$	16	$	28

	Three-Month Periods Ended				Six-Month Periods Ended
Stock Granted in Fiscal Year	September 26, 2021		September 27, 2020		September 26, 2021		September 27, 2020
2019	$	-	$	25	$	-	$	62
2020		10		30		40		60
2021		52		32		104		36
2022		99		-		116		-
Total stock grant compensation	$	161	$	87	$	260	$	158

Schedule of Nonvested Share Activity [Table Text Block]

Number of Shares	Fair Value per Share		Grant Date	Vesting Period (Years)
40,165	$	7.47	August 11, 2021	One
41,452		5.79	August 12, 2020	Two
46,512		5.16	August 14, 2019	Two
28,000		5.43	August 8, 2018	Two

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