Schedule of NovaGold Arrangement Stock Options Outstanding (Details) - NovaGold Arrangement Options [Member]	9 Months Ended
	Aug. 31, 2015 $ / shares shares
Number of outstanding and exercisable options | shares	530,105
Weighted average years to expiry	11 months 19 days
Weighted average exercise price	$ 4.89
NovaGold Arrangement Range 1 [Member]
Exercise price lower range limit	2.82
Exercise price upper range limit	$ 3.99
Number of outstanding and exercisable options | shares	49,998
Weighted average years to expiry	1 year 6 months 29 days
Weighted average exercise price	$ 2.97
NovaGold Arrangement Range 2 [Member]
Exercise price lower range limit	4.00
Exercise price upper range limit	$ 5.99
Number of outstanding and exercisable options | shares	295,071
Weighted average years to expiry	10 months 28 days
Weighted average exercise price	$ 4.99
NovaGold Arrangement Range 3 [Member]
Exercise price lower range limit	6.00
Exercise price upper range limit	$ 6.59
Number of outstanding and exercisable options | shares	185,036
Weighted average years to expiry	10 months 24 days
Weighted average exercise price	$ 6.29