Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 26, 2021	Mar. 28, 2021
Assets, Current [Abstract]
Cash and cash equivalents	$ 23,438	$ 2,998
Trade accounts receivables, net	102,020	90,603
Inventories	76,242	63,864
Income taxes receivable	811	175
Prepaid expenses and other current assets	6,967	5,367
Total current assets	209,478	163,007
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT, AND EQUIPMENT:	294,264	300,404
Less accumulated depreciation	146,790	155,792
Net property, plant, and equipment	147,474	144,612
Other Assets [Abstract]
Right-of-use assets	10,905	11,630
Goodwill	72,917	70,720
Intangible assets, net of accumulated amortization	72,575	76,368
Other	7,795	6,213
Total other assets	164,192	164,931
Total assets	521,144	472,550
Liabilities, Current [Abstract]
Accounts payable — trade	44,021	37,313
Accrued payroll and employee benefits	15,848	18,048
Current portion of long-term debt	9,907	9,907
Short-term lease liability	1,673	1,587
Container deposits	1,543	1,452
Other current liabilities	2,543	2,155
Total current liabilities	75,535	70,462
LONG-TERM DEBT, LESS CURRENT PORTION	105,915	88,845
LONG-TERM LEASE LIABILITY	9,397	10,231
PENSION WITHDRAWAL LIABILITY	4,366	4,631
DEFERRED INCOME TAXES	24,445	24,445
DEFERRED COMPENSATION LIABILITY	8,251	7,322
OTHER LONG-TERM LIABILITIES	1,541	1,368
Total liabilities	229,450	207,304
COMMITMENTS AND CONTINGENCIES	0	0
SHAREHOLDERS’ EQUITY:
Common stock; authorized: 60,000,000 shares of $0.01 par value; 20,858,385 and 20,969,746 shares issued and outstanding as of December 26, 2021 and March 28, 2021, respectively	209	210
Additional paid-in capital	44,723	51,138
Retained earnings	246,762	213,898
Total shareholders’ equity	291,694	265,246
Total liabilities and shareholders’ equity	$ 521,144	$ 472,550