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SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Depreciation and amortization expense included in operations | $ 165,000 | $ 122,000 | $ 71,000
Depletion of mineral rights | $ 614,000 | $ 294,000 | $ 298,000

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- Definition Depletion of mineral rights + References No definition available. + Details
Name: | fil_DepletionOfMineralRights
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Depreciation and amortization expense included in operations + References No definition available. + Details
Name: | fil_DepreciationAndAmortizationExpenseIncludedInOperations
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration