Annual report pursuant to Section 13 and 15(d)

4. INTANGIBLE ASSETS (Details)

v2.4.1.9
4. INTANGIBLE ASSETS (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Gross $ 7,419us-gaap_FiniteLivedIntangibleAssetsGross $ 7,419us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated Amortization (4,633)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization (4,159)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Net Book Value 2,786us-gaap_IntangibleAssetsNetExcludingGoodwill 3,260us-gaap_IntangibleAssetsNetExcludingGoodwill
Kinergy Tradename [Member]    
Gross 2,678us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= peix_KinergyTradenameMember
2,678us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= peix_KinergyTradenameMember
Accumulated Amortization 0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= peix_KinergyTradenameMember
0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= peix_KinergyTradenameMember
Net Book Value 2,678us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= peix_KinergyTradenameMember
2,678us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= peix_KinergyTradenameMember
Customer Relationships [Member]    
Useful Life (Years) 10 years  
Gross 4,741us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
4,741us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
Accumulated Amortization (4,633)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
(4,159)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
Net Book Value $ 108us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
$ 582us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember