Details on Mineral Properties (Detail) (CAD)	Jun. 30, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Mineral properties (note 7)	49,791,301	49,563,134
Tonopah
Property, Plant and Equipment [Line Items]
Mineral properties (note 7)	7,247,374	7,324,586
Spring Valley
Property, Plant and Equipment [Line Items]
Mineral properties (note 7)	4,891,696	5,099,159
Pan
Property, Plant and Equipment [Line Items]
Mineral properties (note 7)	34,278,644	34,020,664
Gold Rock
Property, Plant and Equipment [Line Items]
Mineral properties (note 7)	1,161,765	863,112
Golden Eagle
Property, Plant and Equipment [Line Items]
Mineral properties (note 7)	2,211,822	2,255,613