Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Dec. 29, 2013	Dec. 30, 2012	Dec. 29, 2013	Dec. 30, 2012
Income Statement [Abstract]
Sales	$ 81,697	$ 85,527	$ 263,040	$ 262,786
Cost of sales	(68,147)	(70,191)	(215,689)	(212,947)
Multiemployer Pension Plan Withdrawal Charge	0	7,210	0	7,210
Gross profit	13,550	8,126	47,351	42,629
Selling, general and administrative expenses	(8,167)	(7,617)	(25,430)	(23,299)
Operating income	5,383	509	21,921	19,330
Interest (expense) income	9	35	(18)	99
Income from continuing operations before income taxes	5,392	544	21,903	19,429
Income tax provision	(1,912)	804	(8,104)	(6,486)
Income from continuing operations	3,480	1,348	13,799	12,943
Income from discontinued operations, net of tax	0	0	0	18
Net income	$ 3,480	$ 1,348	$ 13,799	$ 12,961
Weighted average number of shares outstanding - basic	10,547,882	10,474,214	10,538,595	10,454,669
Weighted average number of shares outstanding - diluted	10,595,935	10,535,549	10,590,880	10,528,150
Basic earnings per share
Earnings per share from continuing operations (usd per share)	$ 0.33	$ 0.13	$ 1.31	$ 1.24
Earnings per share from discontinued operations (usd per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Basic earnings per share (usd per share)	$ 0.33	$ 0.13	$ 1.31	$ 1.24
Diluted earnings per share
Earnings per share from continuing operations (usd per share)	$ 0.33	$ 0.13	$ 1.30	$ 1.23
Earnings per share from discontinued operations (usd per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Diluted earnings per share (usd per share)	$ 0.33	$ 0.13	$ 1.30	$ 1.23
Cash dividends declared per common share (usd per share)	$ 0	$ 0	$ 0.36	$ 0.34

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