Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Feb. 27, 2021	May 30, 2020
Current assets:
Cash and cash equivalents	$ 52,917	$ 78,130
Investment securities available-for-sale	127,771	154,163
Trade and other receivables, net	130,314	98,375
Inventories	207,739	187,216
Prepaid expenses and other current assets	4,162	4,367
Total current assets	522,903	522,251
Property, plant & equipment, net	585,389	557,375
Finance lease right-of-use asset, net	563	678
Operating lease right-of-use asset, net	1,922	2,531
Investments in unconsolidated entities	57,055	60,982
Goodwill	35,525	35,525
Intangible assets, net	22,256	22,816
Other long-term assets	5,671	4,536
Total Assets	1,231,284	1,206,694
Current liabilities:
Accounts payable and accrued expenses	99,851	92,182
Current portion of finance lease obligation	212	205
Current portion of operating lease obligation	741	796
Total current liabilities	100,804	93,183
Long-term finance lease obligation	492	652
Long-term operating lease obligation	1,180	1,735
Other noncurrent liabilities	9,690	8,681
Deferred income taxes	102,669	92,768
Total liabilities	214,835	197,019
Commitments and contingencies - see Note 12
Stockholders' equity:
Paid-in capital	63,170	60,372
Retained earnings	980,212	975,147
Accumulated other comprehensive income (loss), net of tax	(135)	79
Common stock in treasury at cost - 26,205 shares at February 27, 2021 and 26,287 shares at May 30, 2020	(27,549)	(26,674)
Total stockholders' equity	1,016,449	1,009,675
Total Liabilities and Stockholders' Equity	1,231,284	1,206,694
Common Stock [Member]
Stockholders' equity:
Common stock	703	703
Class A Common Stock [Member]
Stockholders' equity:
Common stock	$ 48	$ 48