| 
           7. COMMITMENTS AND CONTINGENCIES (Details Narrative) (EthanolMember, USD $) 
         | 
        
           Jun. 30, 2013 
         | 
      
|---|---|
| 
           EthanolMember 
         | 
        |
| Open ethanol indexed-price sales commitment | 105,572,000 gallons | 
| Open WDG and syrup fixed-price sales contracts | $ 1,041,000 | 
| Open indexed-price sales contracts | 7,000 tons | 
| Fixed-price purchase contract, value | $ 12,749,000 | 
| Fixed-price purchase contract, gallons | 129,000 gallons | 
| X | ||||||||||
| 
             
- Definition 
          Fixed-price purchase contract, gallons No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Fixed-price purchase contract, value No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Open ethanol indexed-price sales commitment No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Open indexed-price sales contracts No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Open WDG and syrup fixed-price sales contracts No definition available. 
  |