Amount of cash paid to acquire the entity.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph f(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityCashPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Note 14. Subsequent Events (Detail) In Millions, except Per Share data, unless otherwise specified	Jul. 25, 2012 USD ($)	Jul. 25, 2012 CAD	Jul. 25, 2012 Common Share [Member] CAD	Jul. 25, 2012 Common Share Purchase Warrant [Member] CAD	Jul. 25, 2012 20 Day Volume Weighted Average [Member]
Business Acquisition, Share Price (in Dollars per share)			1.80	0.205
Business Acquisition, Cost of Acquired Entity, Cash Paid (in Dollars)		100
Business Acquisition Share Premium	23.00%	23.00%			28.00%
Business Acquisition Closing Price Per Share (in Dollars per share)	$ 1.41