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Income Taxes - net operating loss carry forwards and deferred tax assets (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Taxes - net operating loss carry forwards and deferred tax assets      
Accumulated depreciation and amortization $ (516)fil_AccumulatedDepreciationAndAmortization $ (514)fil_AccumulatedDepreciationAndAmortization $ (514)fil_AccumulatedDepreciationAndAmortization
Allowance for loss 694fil_AllowanceForLoss 694fil_AllowanceForLoss 694fil_AllowanceForLoss
Others 0fil_OthersIncometaxes 0fil_OthersIncometaxes 38fil_OthersIncometaxes
Federal benefit of NOL carryforward 1,078fil_FederalBenefitOfNolCarryforward 1,078fil_FederalBenefitOfNolCarryforward 1,078fil_FederalBenefitOfNolCarryforward
Federal benefit of AMT carryforward 164fil_FederalBenefitOfAmtCarryforward 164fil_FederalBenefitOfAmtCarryforward 164fil_FederalBenefitOfAmtCarryforward
Deferred tax asset 1,420fil_DeferredTaxAsset 1,422fil_DeferredTaxAsset 1,460fil_DeferredTaxAsset
Less valuation allowance (1,420)fil_LessvaluationallowanceOfDeferredTax (1,422)fil_LessvaluationallowanceOfDeferredTax (1,460)fil_LessvaluationallowanceOfDeferredTax
Total deferred tax asset $ 0fil_TotalDeferredTaxAsset $ 0fil_TotalDeferredTaxAsset $ 0fil_TotalDeferredTaxAsset