Income Taxes Income Taxes-Deferred Tax Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013
Deferred tax assets:
Trade receivables	$ 191	$ 188
Stock compensation accruals	1,031	776
Pension withdrawal liability	2,872	2,902
Other	842	1,100
Total deferred tax assets	4,936	4,966
Deferred tax liabilities:
Inventories	(3,618)	(3,319)
Prepaid	(727)	(525)
Excess of tax over book depreciation	(13,221)	(11,385)
Amortization of intangibles	(456)	(354)
Total deferred tax liabilities	(18,022)	(15,583)
Net deferred tax liabilities	$ (13,086)	$ (10,617)