Annual report pursuant to Section 13 and 15(d)

11. COMMITMENTS AND CONTINGENCIES (Details Narrative)

v2.4.1.9
11. COMMITMENTS AND CONTINGENCIES (Details Narrative) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Rent expense $ 2,417us-gaap_LeaseAndRentalExpense $ 1,454us-gaap_LeaseAndRentalExpense $ 2,252us-gaap_LeaseAndRentalExpense
Open Ethanol      
Open indexed-price sales contracts 163,502,000 gallons    
Corn contract      
Sales commitments 1,034peix_SalesCommitments
/ us-gaap_OtherCommitmentsAxis
= peix_CornMember 		   
Open indexed-price sales contracts 1,072,000 pounds    
Syrup contracts      
Sales commitments 871peix_SalesCommitments
/ us-gaap_OtherCommitmentsAxis
= peix_SyrupMember 		   
Open indexed-price sales contracts 162,000 tons of WDG and syrup    
Ethanol contracts      
Purchase commitments $ 12,784us-gaap_LongTermPurchaseCommitmentAmount
/ us-gaap_OtherCommitmentsAxis
= peix_EthanolContractMember 		   
Indexed-price purchase contracts 33,330,000 gallons