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Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) (Common Stock [Member], USD $)	May 25, 2014 Minimum [Member]	May 26, 2013 Minimum [Member]	May 27, 2012 Minimum [Member]	May 25, 2014 Maximum [Member]	May 26, 2013 Maximum [Member]	May 27, 2012 Maximum [Member]
Issuance of common stock	$ 5.63	$ 1.66	$ 2.55	$ 13.32	$ 13.32	$ 6.95

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant