Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Aug. 29, 2020	Aug. 31, 2019
Operating activities:
Net loss	$ (19,399)	$ (45,721)
Depreciation and amortization	14,744	13,620
Impairment loss on property, plant & equipment	0	2,919
Other adjustments, net	(10,145)	(31,496)
Net cash used in operations	(14,800)	(60,678)
Investing activities:
Purchases of investment securities	(24,195)	(9,108)
Sales and maturities of investment securities	28,231	69,919
Distributions from unconsolidated entities	650	858
Purchases of property, plant and equipment	(25,338)	(23,670)
Net proceeds from disposal of property, plant and equipment	181	1,383
Net cash provided by (used in) investing activities	(20,471)	39,382
Financing activities:
Purchase of common stock by treasury	0	(11)
Distributions to noncontrolling interests	0	(756)
Principal payments on long-term debt	0	(750)
Principal payments on finance lease	(50)	(48)
Net cash used in financing activities	(50)	(1,565)
Net change in cash and cash equivalents	(35,321)	(22,861)
Cash and cash equivalents at beginning of period	78,130	69,247
Cash and cash equivalents at end of period	42,809	46,386
Supplemental Information:
Cash paid for operating leases	237	197
Interest paid	$ (65)	$ (90)