Note 10 - Debt (Details) (USD $)				3 Months Ended		9 Months Ended				1 Months Ended			9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended		9 Months Ended			1 Months Ended	9 Months Ended		1 Months Ended
	Feb. 23, 2014	May 26, 2013	May 23, 2012	Feb. 23, 2014 GE [Member] Amortization of Loan Origination Fees [Member]	Feb. 24, 2013 GE [Member] Amortization of Loan Origination Fees [Member]	Feb. 23, 2014 GE [Member] Amortization of Loan Origination Fees [Member]	Feb. 24, 2013 GE [Member] Amortization of Loan Origination Fees [Member]	Feb. 23, 2014 GE [Member]	May 26, 2013 GE [Member]	Apr. 23, 2012 Apio [Member]	Feb. 23, 2014 Apio [Member]	May 26, 2013 Apio [Member]	Feb. 23, 2014 Apio [Member]	Feb. 23, 2014 Lifecore [Member] Amortization of Loan Origination Fees [Member]	Feb. 23, 2014 Lifecore [Member] Amortization of Loan Origination Fees [Member]	Aug. 26, 2012 Lifecore [Member]	Feb. 23, 2014 Lifecore [Member]	May 26, 2013 Lifecore [Member]	Feb. 23, 2014 Remarketing Fee [Member]	Feb. 23, 2014 Annual Fees [Member]	Feb. 23, 2014 Term Loan [Member]	May 23, 2012 Working Capital Line of Credit [Member]	Feb. 23, 2014 Working Capital Line of Credit [Member]	May 26, 2013 Working Capital Line of Credit [Member]	May 23, 2012 Term Loan [Member]
Note 10 - Debt (Details) [Line Items]
Line of Credit Facility Term										5 years												1 year
Line of Credit Facility, Maximum Borrowing Capacity										$ 25,000,000												$ 10,000,000
Debt Instrument, Basis Spread on Variable Rate										2.00%												1.85%			2.00%
Line of Credit Facility, Remaining Borrowing Capacity											19,200,000												9,400,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage										0.375%
Line of Credit Facility, Amount Outstanding											0	4,000,000											0	0
Minimum Fixed Charge Coverage Ratio													1.10				1.10
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums								1,000,000	1,200,000								111,000	149,000
Interest Expense, Other				47,000	45,000	140,000	136,000							13,000	39,000
Number of Financing Agreements			2
Minimum Quick Ratio																1) A Credit and Security Agreement (the "Credit Agreement") which includes (a) a one-year, $10.0 million asset-based working capital revolving line of credit, with an interest rate of LIBOR plus 1.85%, with availability based on the combination of Lifecore's eligible accounts receivable and inventory balances (availability was $9.4 million at February 23, 2014) and with no unused fee (at February 23, 2014 and May 26, 2013, no amounts were outstanding under the line of credit) and (b) a $12.0 million term loan which matures in four years due in monthly payments of $250,000 with interest payable monthly based on a variable interest rate of LIBOR plus 2% (the "Term Loan").	1.25
Line of Credit Facility, Commitment Fee Amount																							0
Long-term Debt	35,780,000	40,305,000																			12,000,000
Long Term Debt Contractual Maturity Term																									4 years
Debt Instrument, Periodic Payment, Principal																									250,000
Letters of Credit Outstanding, Amount			3,500,000
Minimum Tangible Net Worth		$ 29,000,000
Annual Re-Marketing Fee Percentage																			0.125%
Annual Letter of Credit Fee Percentage																				0.75%