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Note 10 - Shareholders' Equity and Share-Based Compensation (Tables)

12 Months Ended

May 01, 2021

Notes Tables

Schedule of Nonvested Restricted Stock and Restricted Stock Units Activity [Table Text Block]

		Year Ended
		May 1, 2021								May 2, 2020								April 27, 2019
		Number of Nonvested Shares				Weighted Average Grant Date Fair Value Per Share				Number of Nonvested Shares				Weighted Average Grant Date Fair Value Per Share				Number of Nonvested Shares				Weighted Average Grant Date Fair Value Per Share
Outstanding at beginning of year			449			$	7.16				444			$	7.58				437			$	8.48
Granted			223				3.92				186				7.03				181				6.79
Vested			(176	)			7.27				(173	)			8.10				(169	)			9.05
Forfeited			(16	)			7.00				(8	)			7.37				(5	)			7.74
Outstanding at end of year			480			$	5.62				449			$	7.16				444			$	7.58

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

		Stock Options				Weighted Average Exercise Price Per Share				Weighted Average Remaining Contractual Life (Years)				Aggregate Intrinsic Value
Outstanding at May 2, 2020			2,121			$	9.96				4.38			$	—
Granted			412				4.11				—				—
Canceled or forfeited			(306	)			12.48				—				—
Outstanding at May 1, 2021			2,227			$	8.53				4.83			$	843.00
Shares vested and expected to vest			2,190			$	8.58				4.76			$	792.00
Exercisable at May 1, 2021			1,478			$	9.83				3.00			$	—

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

		Year Ended
		May 1, 2021				May 2, 2020				April 27, 2019
Fair value of options granted		$	1.71			$	1.99			$	2.16
Risk-free interest rate			43.00	%			1.51	%			2.83	%
Expected dividend rate			—	%			3.50	%			3.37	%
Expected volatility			40.53	%			37.55	%			38.58	%
Expected life of option (in years)			6.94				6.94				6.83

Share-based Payment Arrangement, Cost by Plan [Table Text Block]

		Year Ended
		May 1, 2021				May 2, 2020				April 27, 2019
Stock options		$	450			$	492			$	593
Restricted stock and stock units			1,203				1,341				1,446
Employee stock purchase plans			414				432				440
		$	2,067			$	2,265			$	2,479

		Year Ended
		May 1, 2021				May 2, 2020				April 27, 2019
Cost of sales		$	472			$	514			$	578
Selling			484				572				625
General and administrative			678				717				772
Product design and development			433				462				504
		$	2,067			$	2,265			$	2,479

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