CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jul. 25, 2014	Jul. 26, 2013
Income Statement [Abstract]
Net Sales	$ 326,341	$ 329,449
Cost of sales	113,463	106,641
Operating wage and fringe benefit expenses	104,228	102,847
Other operating expenses	49,508	48,847
Selling, general and administrative expenses	38,847	33,276
Depreciation and amortization expense	19,973	17,230
Impairment of assets held for sale	258	8,609
Operating Income	64	11,999
Net interest expense (income)	1,616	(156)
(Loss) Income Before Income Taxes	(1,552)	12,155
(Benefit) Provision for income taxes	(536)	3,779
Net (Loss) Income	$ (1,016)	$ 8,376
Earnings Per Share—Net (Loss) Income
Basic	$ (0.04)	$ 0.30
Diluted	$ (0.04)	$ 0.30
Cash Dividends Paid Per Share	$ 0.310	$ 0.275
Weighted Average Shares Outstanding
Basic	23,535	27,560
Dilutive shares	0	357
Diluted	23,535	27,917