| 
           11. COMMITMENTS AND CONTINGENCIES (Details Narrative) (USD $) 
        In Thousands, unless otherwise specified  | 
        12 Months Ended | |
|---|---|---|
| 
           Dec. 31, 2013 
         | 
        
           Dec. 31, 2012 
         | 
      |
| Rent expense | $ 1,454 | $ 2,252 | 
| 
           Corn contract 
         | 
        ||
| Sales commitments | 959 | |
| 
           Syrup contracts 
         | 
        ||
| Sales commitments | 105 | |
| 
           Ethanol contracts 
         | 
        ||
| Purchase commitments | $ 18,736 | |
| X | ||||||||||
| 
             
- Definition 
          Sales commitments No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          The minimum amount the entity agreed to spend under the long-term purchase commitment. No definition available. 
  |