Schedule of Common Shares Issued and Outstanding (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Balance - beginning of period (shares)	53,066,656	46,665,069	200
Balance - beginning of period	$ 104,895	$ 92,168	$ 27,280
Issued pursuant to Plan of Arrangement (Shares)			46,577,878
Issued pursuant to Plan of Arrangement			64,496
Issued pursuant to employment agreement (shares)			76,005
Issued pursuant to employment agreement			316
Exercise of NovaGold Warrants (Shares)		6,088,262
Exercise of NovaGold Warrants		11,996
Exercise of NovaGold Arrangement Options (Shares)	46,929	52,243	10,986
Exercise of NovaGold Arrangement Options	631	254	76
Private Placement (shares)	6,521,740
Private placement	5,068
NovaGold Performance Share Units and Deferred Share Units (shares)	14,166	16,586
Vesting of NovaGold Performance and Deferred Share Units Share Units		32
Vesting of NovaGold Performance Share Units (Shares)	14,166
Vesting of NovaGold Performance Share Units Value	28
Vesting of Restricted Share Units (Shares)	492,501	244,496
Vesting of Restricted Share Units	929	445
Vesting of Deferred Share Units (Shares)	154,373
Vesting of Deferred Share Units	282
Balance - end of period, issued and outstanding (shares)	60,296,365	53,066,656	46,665,069
Balance - end of period, issued and outstanding	$ 111,833	$ 104,895	$ 92,168