5. Warrant Liability (Details)	12 Months Ended
May 31, 2013 USD ($)
Details
Issuance of Stock and Warrants for Services or Claims	$ 2,715,000

Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Name:	us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration