Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	May 25, 2014	May 26, 2013	May 27, 2012
Consolidated net income	$ 19,342,000	$ 22,812,000	$ 13,099,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,114,000	7,295,000	5,621,000
Stock-based compensation expense	1,356,000	1,695,000	1,872,000
Deferred taxes	5,605,000	6,511,000	3,283,000
Change in investment in non-public company , fair value	(10,000,000)	(8,100,000)	(5,838,000)
Tax benefit from stock based compensation	(1,922,000)	(1,302,000)	(4,057,000)
Net loss on disposal of property and equipment	329,000	217,000	12,000
Earn out liability		(3,933,000)	1,421,000
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable, net	(7,994,000)	(4,121,000)	(3,246,000)
Accounts receivable, related party	12,000	(348,000)	130,000
Income taxes receivable	5,025,000	(3,754,000)	4,581,000
Inventories, net	(622,000)	(2,102,000)	(441,000)
Issuance of notes and advances receivable	(4,763,000)	(4,173,000)	(3,699,000)
Collection of notes and advances receivable	4,481,000	4,173,000	3,704,000
Prepaid expenses and other current assets	(32,000)	(278,000)	3,588,000
Accounts payable	(50,000)	8,826,000	(544,000)
Accounts payable, related party	(91,000)	10,000	476,000
Accrued compensation	38,000	(798,000)	2,701,000
Other accrued liabilities	3,211,000	(2,486,000)	3,434,000
Deferred revenue	6,000	1,086,000	(2,495,000)
Net cash provided by operating activities	21,045,000	21,230,000	22,181,000
Cash flows from investing activities:
Purchases of property and equipment	(14,886,000)	(8,877,000)	(5,371,000)
Acquisition of GreenLine (Note 2)			(66,826,000)
Purchase of marketable securities	(1,417,000)	(4,959,000)	(30,723,000)
Proceeds from maturities of marketable securities	0	0
Proceeds from sales of marketable securities	0	0
Net cash used in investing activities	(13,341,000)	(10,422,000)	(44,073,000)
Cash flows from financing activities:
Repurchase of outstanding common stock			(5,006,000)
Proceeds from sale of common stock	2,298,000	3,416,000	61,000
Taxes paid by Company for stock swaps and RSUs	(1,271,000)	(49,000)	(260,000)
Tax benefit from stock-based compensation expense	1,922,000	1,302,000	4,057,000
Earn out payment from Lifecore acquisition		(9,650,000)
Net change in other assets/liabilities	31,000	712,000	(1,813,000)
Proceeds from long term debt			31,816,000
Proceeds from lines of credit	9,500,000		12,766,000
Payments on long term debt	(5,933,000)	(7,012,000)	(4,329,000)
Payments on lines of credit	(13,500,000)	(7,666,000)	(1,100,000)
Payments to non-controlling interest.	(226,000)	(320,000)	(258,000)
Net cash (used in) provided by financing activities	(7,179,000)	(19,267,000)	35,934,000
Net increase (decrease) in cash and cash equivalents	525,000	(8,459,000)	14,042,000
Cash and cash equivalents at beginning of year	13,718,000	22,177,000	8,135,000
Cash and cash equivalents at end of year	14,243,000	13,718,000	22,177,000
Supplemental disclosure of cash flows information:
Cash paid during the period for interest	1,504,000	1,728,000	952,000
Cash paid during the period for income taxes, net of refunds received	50,000	5,605,000	246,000
Marketable Maturities [Member]
Cash flows from investing activities:
Proceeds from maturities of marketable securities	2,962,000	3,414,000	31,104,000
Proceeds from sales of marketable securities	2,962,000	3,414,000	31,104,000
Marketable Sales [Member]
Cash flows from investing activities:
Proceeds from maturities of marketable securities			27,743,000
Proceeds from sales of marketable securities			27,743,000
Earnout [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Earn out liability		$ (3,933,000)