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Major Customers (Tables)
12 Months Ended
Sep. 30, 2012
Risks and Uncertainties [Abstract]  
Schedule of Major Customers

Total revenue and deliveries to these customers were as follows:

   Deliveries   Revenue 
   Mcf   % of Total   Amount   % of Total 
Corning Incorporated                    
Year ended September 30, 2012   2,538,000    30   $1,142,000    6 
Year ended September 30, 2011   2,811,000    29   $1,263,000    6 
Year ended September 30, 2010   2,596,000    29   $1,149,000    5 
NYSEG                    
Year ended September 30, 2012   2,675,000    32   $348,000    2 
Year ended September 30, 2011   3,374,000    35   $342,000    1 
Year ended September 30, 2010   3,156,000    35   $335,000    1 
BEGWS                    
Year ended September 30, 2012   505,000    6   $1,479,000    8 
Year ended September 30, 2011   639,000    7   $2,037,000    9 
Year ended September 30, 2010   623,000    7   $2,164,000    10