CONSOLIDATED STATEMENTS OF NET INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 27, 2017	Oct. 28, 2016	Oct. 27, 2017	Oct. 28, 2016
Income Statement [Abstract]
Net Sales	$ 117,626	$ 96,158	$ 226,891	$ 182,099
Cost of goods sold	82,920	62,881	158,746	120,301
Gross Margin	34,706	33,277	68,145	61,798
Operating expenses:
Advertising and marketing costs	5,313	3,543	8,377	6,782
Selling costs	4,257	4,099	8,690	7,813
Distribution costs	5,373	4,674	10,736	8,623
General and administrative costs	10,308	9,522	18,908	18,836
Amortization of intangible assets	936	39	1,837	78
Impairment, restructuring and other exit costs	5,876	16,168	5,876	16,168
Total operating expenses	32,063	38,045	54,424	58,300
Operating Income (Loss)	2,643	(4,768)	13,721	3,498
Net interest expense	1,015	1,335	1,475	2,822
Income (Loss) from Continuing Operations Before Income Taxes	1,628	(6,103)	12,246	676
(Benefit) Provision for income taxes	(622)	(1,969)	2,947	233
Income (Loss) from Continuing Operations	2,250	(4,134)	9,299	443
Income from Discontinued Operations, net of Income Taxes	0	4,352	0	8,938
Net Income	$ 2,250	$ 218	$ 9,299	$ 9,381
Earnings Per Share — Income (Loss) from Continuing Operations
Basic (in dollars per share)	$ 0.11	$ (0.21)	$ 0.46	$ 0.02
Diluted (in dollars per share)	0.11	(0.21)	0.46	0.02
Earnings Per Share — Income from Discontinued Operations
Basic (in dollars per share)	0.00	0.22	0.00	0.45
Diluted (in dollars per share)	0.00	0.22	0.00	0.45
Earnings Per Share — Net Income
Basic (in dollars per share)	0.11	0.01	0.46	0.47
Diluted (in dollars per share)	0.11	0.01	0.46	0.47
Cash Dividends Paid Per Share (in dollars per share)	$ 0.34	$ 0.34	$ 8.18	$ 0.68
Weighted Average Shares Outstanding
Basic (in shares)	20,188	19,825	20,166	19,807
Dilutive shares (in shares)	33	139	35	175
Diluted (in shares)	20,221	19,964	20,201	19,982