Commitments and Contingencies (Details) (Ontario Grant, CAD)	1 Months Ended	9 Months Ended	45 Months Ended
	Jun. 30, 2011	Jul. 31, 2014	Jul. 31, 2014
Ontario Grant
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		5,100,000	21,500,000
Grants receivable		1,500,000	1,500,000