Note 13 - Employee Savings and Investment Plans (Details) (USD $)	12 Months Ended
	May 25, 2014	May 26, 2013	May 27, 2012
Note 13 - Employee Savings and Investment Plans (Details) [Line Items]
Defined Contribution Plan Percent of Employee Contributions Matched by Employer	67.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount (in Dollars)	$ 1,100,000	$ 939,000	$ 789,000
Maximum Contribution for Employer Match [Member]
Note 13 - Employee Savings and Investment Plans (Details) [Line Items]
Defined Contribution Plans Employee Contributions Eligible for Employer Match	6.00%
Minimum [Member]
Note 13 - Employee Savings and Investment Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	1.00%
Maximum [Member]
Note 13 - Employee Savings and Investment Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	50.00%