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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Jan. 31, 2013
Schedule of Inventory, Current [Table Text Block] The components of inventory at January 31, 2013, and January 31, 2012 are as follows (amounts in thousands):
    2013     2012  
                 
Ethanol and other finished goods   $ 7,306     $ 5,318  
Work in process     4,414       3,819  
Grain and other raw materials     13,199       21,212  
                 
Total   $ 24,919     $ 30,349  
Property, Plant and Equipment [Table Text Block] The components of property and equipment at January 31, 2013 and 2012 are as follows (amounts in thousands):
    2013     2012  
                 
Land and improvements   $ 23,980     $ 25,094  
Buildings and improvements     38,056       40,710  
Machinery, equipment and fixtures     221,638       212,797  
Leasehold improvements     —       366  
Construction in progress     39       7,194  
                 
      283,713       286,161  
Less: accumulated depreciation     (60,533 )     (46,077 )
                 
    $ 223,180     $ 240,084  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] The following table summarizes options granted, exercised and canceled or expired during the fiscal year ended January 31, 2013:
              Weighted Average    
          Weighted     Remaining   Aggregate  
    Shares     Average
Exercise 		    Contractual Term   Intrinsic
Value 		 
    (000’s)     Price     (in years)   (000’s)  
                             
Outstanding—Beginning of year     269     $ 13.15              
Granted     —       —              
Exercised     (100 )     14.30              
Canceled or expired     —       —              
                             
Outstanding and exercisable—End of year     169     $ 12.46     1.0   $ 1,582