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Risk Management (Tables)
 12 Months Ended
Sep. 30, 2013
Risk Management [Abstract]  
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location
Derivatives not designated as hedging instruments as of September 30, 2013 and 2012 are as follows:

 
2013
 
2012
Derivative assets - primarily corn contracts
$
193,060

 
$
134,050

Derivative liabilities - corn contracts
(394,699
)
 
—

Cash held by (due to) broker
633,115

 
(62,072
)
Total
$
431,476

 
$
71,978
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance
The effects on operating income from derivative activities is as follows for the years ending September 30, are as follows:

 
2013

 
2012

 
2011

Increase (decrease) in revenue due to derivatives related to ethanol sales:
 
 
 
 
 
Realized
$
—

 
$
(7,308
)
 
$
(2,655,034
)
Unrealized
12,550

 
—

 
1,528,367

Total effect on revenue
12,550

 
(7,308
)
 
(1,126,667
)
 
 
 
 
 
 
(Increase) decrease in cost of goods sold due to derivatives related to corn costs:
 

 
 

 
 

Realized
1,255,616

 
(1,134,488
)
 
(2,946,138
)
Unrealized
(214,189
)
 
134,050

 
(44,125
)
Total effect on cost of goods sold
1,041,427

 
(1,000,438
)
 
(2,990,263
)
 
 
 
 
 
 
Total (decrease) increase  to operating income due to derivative activities
$
1,053,977

 
$
(1,007,746
)
 
$
(4,116,930
)