Commitments and Contingencies (Details)	1 Months Ended
Jun. 30, 2011 CAD
Ontario Grant
Gain Contingencies [Line Items]
Grant amount	CAD 25,000,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_GainContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration