CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($)	3 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Income Statement [Abstract]
Net Sales	$ 280,187,000	$ 252,614,000
Costs and Expenses:
Cost of Product Sold	264,427,000	232,639,000
Selling and Administrative	17,453,000	17,205,000
Plant Restructuring	81,000	1,185,000
Other Operating (Income) Loss	(2,612,000)	(12,000)
Total Costs and Expenses	279,349,000	251,017,000
Operating Income (Loss)	838,000	1,597,000
Interest Expense, Net	3,217,000	2,144,000
Earnings From Equity Investment	(21,000)	(437,000)
Earnings (Loss) Before Income Taxes	(2,358,000)	(110,000)
Income Taxes Expense (Benefit)	(1,519,000)	(48,000)
Net Earnings (Loss)	(839,000)	(62,000)
Earnings (Loss) Attributable to Common Stock	$ (839,000)	$ (67,000)
Basic Earnings (Loss) per Common Share	$ (0.09)	$ (0.01)
Diluted Earnings (Loss) per Common Share	$ (0.09)	$ (0.01)