Commitments and Contingencies (Details) (Ontario Grant [Member], CAD)	1 Months Ended	9 Months Ended	33 Months Ended
	Jun. 30, 2011	Jul. 31, 2013	Jul. 31, 2013
Ontario Grant [Member]
Gain Contingencies [Line Items]
Grant amount	25,000,000
Grant period	November 1, 2010 to October 31, 2015
Annual disbursements	5,000,000
Benefit recorded to date		4,100,000	15,000,000
Grants receivable		1,200,000	1,200,000