Subsequent Events (Detail) (Convertible Promissory Note [Member], USD $)	Apr. 30, 2013
Lender A [Member]
Own-share Lending Arrangement, Shares, Issued	3,507,253
Own-share Lending Arrangement, Collateral (in Dollars)	$ 18,700
Lender B [Member]
Own-share Lending Arrangement, Shares, Issued	14,494,254
Own-share Lending Arrangement, Collateral (in Dollars)	$ 53,000

The amount of collateral required to be received or received by the entity from the counterparty (share borrower) in connection with an own-share lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 2A

-Subparagraph (b)(4)

-URI http://asc.fasb.org/extlink&oid=7656903&loc=SL6757479-112611

Name:	us-gaap_OwnshareLendingArrangementCollateral
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant