Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended	6 Months Ended
Nov. 24, 2013	Nov. 24, 2013	May 26, 2013
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Number of Proprietary Platforms	2	2
Certificates of Deposit, at Carrying Value (in Dollars)	$ 0	$ 0	$ 701,000
Marketable Securities Contractual Maturity		1 year
Marketable Securities (in Dollars)	0	0	251,000
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	20.10%	20.10%
Short Term [Member]
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Marketable Securities (in Dollars)	$ 0	$ 0	$ 1,300,000
Minimum [Member]
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Marketable Securities Contractual Maturity		1 year
Finite-Lived Intangible Asset, Useful Life		12 years
Maximum [Member]
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]
Marketable Securities Contractual Maturity		2 years
Finite-Lived Intangible Asset, Useful Life		13 years

- Definition

A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

+ References+ Details