Nature of operations, going concern, structure and plan of arrangement (Narrative) (Details) (USD $)	0 Months Ended	1 Months Ended										1 Months Ended
	Jul. 01, 2014	Oct. 24, 2011	May 31, 2014	Feb. 28, 2014	Nov. 30, 2013	May 31, 2013	Feb. 28, 2013	Nov. 30, 2012	Jan. 11, 2010	Mar. 23, 2004	Mar. 21, 2004	May 31, 2014 Approximations [Member]
Ambler Property Ownership									100.00%
Consideration for Ambler Property									$ 29,000,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		100
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned		27,300,000
Interest Option Held										51.00%
Consolidated Cash			2,083,000	4,364,000	6,484,000	15,687,000	18,739,000	22,244,000			0	2,100,000
Working Capital												1,400,000
Proceeds from Issuance of Private Placement	$ 7,500,000