Financial instruments (Narrative) (Details)	3 Months Ended		3 Months Ended
	Feb. 28, 2014 USD ($)	Nov. 30, 2013 USD ($)	Feb. 28, 2014 Approximations [Member] USD ($)	Feb. 28, 2014 Canadian Limit Due to Currency Risk [Member] CAD
Cash				294,000
Accounts receivable	141,000	90,000		24,000
Accounts payable				477,000
Change in foreign exchange rate	10.00%
Foreign currency net loss			14,000
Interest rate loss	$ 0