Condensed Consolidated Balance Sheets (Interim Periods Unaudited) - USD ($)	Dec. 28, 2019	Mar. 31, 2019	Dec. 29, 2018
Current Assets:
Cash and Cash Equivalents	$ 13,858,000	$ 11,480,000	$ 12,828,000
Accounts Receivable, Net	79,040,000	84,122,000	82,892,000
Contracts Receivable	7,620,000
Inventories	493,065,000	501,684,000	575,935,000
Refundable Income Taxes		1,221,000	1,422,000
Other Current Assets	6,272,000	3,075,000	4,520,000
Total Current Assets	599,953,000	603,248,000	709,999,000
Property, Plant and Equipment, Net	219,311,000	239,273,000	246,014,000
Right-of-Use Assets Operating Net	67,915,000
Right-of-Use Assets Financing, Net	34,784,000
Deferred Income Taxes, Net		2,417,000	1,417,000
Noncurrent Assets Held For Sale-Discontinued Operations	1,054,000	1,143,000	1,739,000
Other Assets	9,643,000	2,801,000	2,890,000
Total Assets	932,660,000	848,882,000	962,059,000
Current Liabilities:
Accounts Payable	84,295,000	61,024,000	93,586,000
Deferred Revenue	12,105,000	4,098,000	6,829,000
Accrued Vacation	11,898,000	11,678,000	11,404,000
Accrued Payroll	6,157,000	5,105,000	5,350,000
Other Accrued Expenses	19,903,000	19,363,000	22,194,000
Income Taxes Payable	4,869,000
Current Portion of Operating Lease Obligations	24,430,000
Current Portion of Financing Lease Obligations	6,584,000
Current Portion of Capital Lease Obligations		6,418,000	5,922,000
Current Portion of Long-Term Debt		345,000	314,657,000
Total Current Liabilities	172,985,000	112,377,000	468,781,000
Long-Term Debt, Less Current Portion	225,337,000	265,900,000	10,715,000
Operating Lease Obligations, Less Current Portion	47,966,000
Financing Lease Obligations, Less Current Portion	27,006,000
Capital Lease Obligations, Less Current Portion		31,286,000	29,730,000
Pension Liabilities	19,463,000	17,349,000	27,356,000
Deferred Income Taxes, Net	866,000
Other Long-Term Liabilities	3,852,000	4,180,000	4,851,000
Total Liabilities	497,475,000	431,397,000	542,026,000
Commitments and Contingencies
Stockholders' Equity:
Preferred Stock	703,000	707,000	707,000
Common Stock, $.25 Par Value Per Share	3,040,000	3,039,000	3,038,000
Additional Paid-in Capital	98,338,000	98,260,000	98,236,000
Treasury Stock, at Cost	(87,194,000)	(75,740,000)	(74,896,000)
Accumulated Other Comprehensive Loss	(18,285,000)	(18,285,000)	(25,186,000)
Retained Earnings	438,583,000	409,504,000	418,134,000
Total Stockholders' Equity	435,185,000	417,485,000	420,033,000
Total Liabilities and Stockholders’ Equity	932,660,000	848,882,000	962,059,000
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Current Assets:
Current Assets Held For Sale		1,568,000	20,339,000
Current Liabilities:
Current Liabilities Held For Sale		61,000	142,000
Noncurrent Liabilities Held For Sale		305,000	593,000
Discontinued Operations, Held-for-sale [Member]
Current Assets:
Current Assets Held For Sale	98,000	98,000	12,063,000
Current Liabilities:
Current Liabilities Held For Sale	$ 2,744,000	$ 4,285,000	$ 8,697,000