Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands	12 Months Ended
	May 28, 2017	May 29, 2016		May 31, 2015
Revenues	$ 532,257,000	$ 541,099,000		$ 539,257,000
Cost of product sales	449,071,000	470,142,000		473,850,000
Gross profit	83,186,000	70,957,000		65,407,000
Operating costs and expenses:
Research and development	9,473,000	7,228,000		6,988,000
Selling, general and administrative	55,628,000	49,515,000		39,958,000
Legal settlement charge	2,580,000
Impairment of GreenLine trade name	0	34,000,000	[1]		[1]
Total operating costs and expenses	67,681,000	90,743,000		46,946,000
Operating income (loss)	15,505,000	(19,786,000)		18,461,000
Dividend income	1,650,000	1,650,000		1,417,000
Interest income	16,000	71,000		315,000
Interest expense, net	(1,826,000)	(1,987,000)		(1,829,000)
Loss on debt refinancing	(1,233,000)		[1]		[1]
Other income	900,000	1,200,000		3,107,000
Net income (loss) before taxes	15,012,000	(18,852,000)		21,471,000
Income tax (expense) benefit	(4,335,000)	7,404,000		(7,746,000)
Consolidated net income (loss)	10,677,000	(11,448,000)	[1]	13,725,000	[1]
Non-controlling interest expense	(87,000)	(193,000)		(181,000)
Net income (loss) applicable to common stockholders	$ 10,590,000	$ (11,641,000)		$ 13,544,000
Basic net income (loss) per share (in dollars per share)	$ 0.39	$ (0.43)		$ 0.50
Diluted net income (loss) per share (in dollars per share)	$ 0.38	$ (0.43)		$ 0.50
Shares used in per share computation
Basic (in shares)	27,276	27,044		26,884
Diluted (in shares)	27,652	27,044		27,336
Other comprehensive income, net of tax:
Change in net unrealized gains on interest rate swap (net of tax effect of $254, $0, and $0)	$ 432,000
Other comprehensive income, net	432,000
Total comprehensive income (loss)	$ 11,022,000	$ (11,641,000)		$ 13,544,000

[1] See Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies for a discussion of accounting principles adopted during the period.