Earnings Per Common Share (Reconciliation Of Basic And Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Sep. 29, 2018		Sep. 23, 2017
Numerator for earnings per common share calculation:
Net income	$ 21,761	$ 17,267	$ 42,405		$ 34,852
Less: Preferred stock dividends	(102)	(92)	(204)	[1]	(184)
Income available to common shareholders	$ 21,659	$ 17,175	$ 42,201		$ 34,668
Denominator for earnings per common share calculation:
Weighted average common shares, basic	32,911	32,754	32,882		32,729
Effect of dilutive securities:
Preferred stock	510	510	510		510
Weighted average number of common shares, diluted	33,640	33,309	33,546		33,300
Basic earnings per common share:	$ 0.66	$ 0.52	$ 1.28		$ 1.06
Diluted earnings per common share:	$ 0.65	$ 0.52	$ 1.26		$ 1.05
Stock Options [Member]
Effect of dilutive securities:
Share based payment arrangements (in shares)	191	45	126		61
Restricted Stock [Member]
Effect of dilutive securities:
Share based payment arrangements (in shares)	28		28

[1] First and second quarter fiscal year 2019 dividend payment of $.20 per common share or common share equivalent paid on June 14, 2018 and September 6, 2018, respectively.