Income Taxes Income Taxes-Deferred Tax Assets (Details) - USD ($) $ in Thousands	Mar. 29, 2020	Mar. 31, 2019
Deferred tax assets:
Trade receivables	$ 212	$ 167
Stock compensation accruals	728	654
Pension withdrawal liability	1,435	1,525
Lease liability	2,476	0
Unrealized loss on interest rate swap	29	0
Other	1,982	1,853
Total deferred tax assets	6,862	4,199
Deferred tax liabilities:
Inventories	(2,231)	(3,272)
Prepaid expenses	(843)	(764)
Excess of tax over book depreciation	(10,504)	(10,000)
Intangible assets	(15,936)	(16,718)
Unrealized gain on interest rate swap	0	(118)
ROU asset	2,454	0
Total deferred tax liabilities	(31,968)	(30,872)
Net deferred tax liabilities	$ (25,106)	$ (26,673)