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           2. VARIABLE INTEREST ENTITY (Details Narrative) (USD $) 
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        3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
| 
           Jun. 30, 2013 
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           Jun. 30, 2012 
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           Jun. 30, 2013 
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           Jun. 30, 2012 
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| Variable Interest Entity | ||||
| Net sales attributed to New PE Holdco | $ 132,337,000 | $ 112,669,000 | $ 254,562,000 | $ 218,523,000 | 
| Net income (loss) attributed to New PE Holdco | $ 535,000 | $ (11,163,000) | $ (4,438,000) | $ (24,804,000) | 
| Ownership percentage in New PE Holdco | 85.00% | 85.00% | ||
| X | ||||||||||
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- Details 
          
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| X | ||||||||||
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- Definition 
          The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available. 
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| X | ||||||||||
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- Definition 
          Description of the amount of pre-tax income (loss) derived by the reporting entity from the Variable Interest Entity (VIE). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Definition 
          The amount of income between the reporting entity and the Variable Interest Entity (VIE). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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