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Capitalized Acquisition Costs on Mineral Properties (Details) (USD $)
Mar. 31, 2015
Jun. 30, 2014
Mineral Properties [Line Items]    
Mineral properties, net $ 28,036,135us-gaap_MineralPropertiesNet $ 28,373,535us-gaap_MineralPropertiesNet
Sleeper    
Mineral Properties [Line Items]    
Mineral properties, net 25,554,090us-gaap_MineralPropertiesNet
/ pzg_MineralPropertiesByNameOfPropertyAxis
= pzg_SleeperGoldMineMember
25,891,490us-gaap_MineralPropertiesNet
/ pzg_MineralPropertiesByNameOfPropertyAxis
= pzg_SleeperGoldMineMember
Mill Creek    
Mineral Properties [Line Items]    
Mineral properties, net 2,096,616us-gaap_MineralPropertiesNet
/ pzg_MineralPropertiesByNameOfPropertyAxis
= pzg_MillCreekPropertyMember
2,096,616us-gaap_MineralPropertiesNet
/ pzg_MineralPropertiesByNameOfPropertyAxis
= pzg_MillCreekPropertyMember
Spring Valley    
Mineral Properties [Line Items]    
Mineral properties, net $ 385,429us-gaap_MineralPropertiesNet
/ pzg_MineralPropertiesByNameOfPropertyAxis
= pzg_SpringValleyPropertyMember
$ 385,429us-gaap_MineralPropertiesNet
/ pzg_MineralPropertiesByNameOfPropertyAxis
= pzg_SpringValleyPropertyMember