Annual report pursuant to Section 13 and 15(d)

7. INCOME TAXES (Details-Effective rate)

v2.4.1.9
7. INCOME TAXES (Details-Effective rate)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Effective income tax rate reconciliation      
Statutory rate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Change in valuation allowance (11.50%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance 458.00%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance 125.50%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Convertible debt instruments   (297.70%)us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsOther  
Section 382 reduction to loss carryover (24.20%)peix_EffectiveIncomeTaxRateReconciliationReductionToLossCarryover (141.10%)peix_EffectiveIncomeTaxRateReconciliationReductionToLossCarryover (169.40%)peix_EffectiveIncomeTaxRateReconciliationReductionToLossCarryover
State income taxes, net of federal benefit 10.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes (8.20%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes 5.50%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Stock compensation   (20.90%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost (1.90%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
Change in tax status of PE Op Co. (1.60%)peix_ChangeInTaxStatus    
Fair value adjustments and warrant inducements 31.80%peix_FairValueAdjustmentsAndWarrantInducementsTaxRate    
Domestic production gross receipts deduction (2.00%)peix_DomesticProductionGrossReceiptsDeduction    
Non-deductible items 0.60%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther (27.70%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther 3.60%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther
Other (1.30%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments 2.60%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments 1.70%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments
Effective rate 36.80%us-gaap_EffectiveIncomeTaxRateContinuingOperations 0.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations 0.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations