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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Summary of Significant Unobservable Inputs Used in Discounted Cash Flow Models | 9 Months Ended | 12 Months Ended
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Feb. 23, 2014 | May 26, 2013
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Summary of Significant Unobservable Inputs Used in Discounted Cash Flow Models [Line Items] |  |
Annual consolidated revenue growth rates | 4.00% |
Consolidated income tax rate | 15.00% | 15.00%
Minimum [Member] |  |
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Summary of Significant Unobservable Inputs Used in Discounted Cash Flow Models [Line Items] |  |
Annual consolidated revenue growth rates |  | 3.00%
Annual consolidated expense growth rates | 3.00% | 3.00%
Consolidated discount rates | 16.00% | 18.00%
Maximum [Member] |  |
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Summary of Significant Unobservable Inputs Used in Discounted Cash Flow Models [Line Items] |  |
Annual consolidated revenue growth rates |  | 9.00%
Annual consolidated expense growth rates | 4.00% | 8.00%
Consolidated discount rates | 22.00% | 28.00%

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