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Mineral Properties - Additional Information (Details) - Jun. 30, 2015 - Nevada	USD ($) a MiningClaim
Sleeper Gold Mine
Mineral Properties [Line Items]
Unpatented mining claims	2,322
Number of mining claims dropped	212
Mining claims dropped, recorded value | $	$ 337,400
Mill Creek property
Mineral Properties [Line Items]
Unpatented lode mining claims	36
Area covered by lode mining claims | a	720
Spring Valley property
Mineral Properties [Line Items]
Unpatented lode mining claims	38

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- Definition

Mineral properties.

+ References

No definition available.

+ Details

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Namespace Prefix:	pzg_
Data Type:	xbrli:stringItemType
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X

- Definition

The value of certain claims that are dropped by the entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	pzg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

The number of claims dropped by the entity.

+ References

No definition available.

+ Details

Name:	pzg_NumberOfDroppedMiningClaims
Namespace Prefix:	pzg_
Data Type:	xbrli:integerItemType
Balance Type:	na
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X

- Definition

Number of unpatented lode mining claims.

+ References

No definition available.

+ Details

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Namespace Prefix:	pzg_
Data Type:	xbrli:integerItemType
Balance Type:	na
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X

- Definition

The number of mining claims that the company owns the right to that haven't been patented as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	pzg_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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- Definition

Area covered under unpatented lode mining claims that the Entity owns.

+ References

No definition available.

+ Details

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Namespace Prefix:	pzg_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

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- Details

Name:	pzg_MineralPropertiesByNameOfPropertyAxis=pzg_SleeperGoldMineMember
Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

X

- Details

Name:	pzg_MineralPropertiesByNameOfPropertyAxis=pzg_MillCreekPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	pzg_MineralPropertiesByNameOfPropertyAxis=pzg_SpringValleyPropertyMember
Namespace Prefix:
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Balance Type:
Period Type: