Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Jun. 30, 2013	Sep. 30, 2012
Plant
Utility property, plant and equipment	$ 58,087,457	$ 54,198,924
Less: accumulated depreciation	(17,578,351)	(15,888,267)
Total plant utility and non-utility, net	40,509,106	38,310,657
Investments
Marketable securities available-for-sale at fair value	2,195,411	2,271,721
Investment in joint ventures	490,926	349,193
Total investments	2,686,337	2,620,914
Current assets
Cash and cash equivalents	15,411	70,083
Customer accounts receivable, (net of allowance for uncollectible accounts of $265,731 and $209,615)	2,894,414	1,626,283
Gas stored underground, at average cost	1,227,306	2,111,264
Materials and supplies inventory	915,598	1,173,104
Prepaid expenses	1,081,692	726,744
Total current assets	6,134,421	5,707,478
Regulatory assets
Unrecovered gas costs	504,160	1,545,235
Deferred regulatory costs	2,385,261	1,545,790
Unamortized debt issuance cost (net of accumulated amortization of $523,787 and $489,522), respectively	218,247	249,211
Deferred income taxes	693,671	1,375,665
Other	292,527	259,254
Total deferred debits and other assets	4,093,866	4,975,155
Total assets	53,423,730	51,614,204
Current liabilities
Current portion of long-term debt	1,655,188	1,571,553
Demand notes payable	750,000	750,000
Borrowings under lines-of-credit	2,898,578	2,196,995
Accounts payable	1,899,574	1,501,193
Accrued expenses	818,713	872,702
Customer deposits and accrued interest	563,164	1,032,739
Dividends declared	279,851	266,205
Deferred income taxes	428,928	270,720
Total current liabilities	9,293,996	8,462,107
Long-term debt, less current installments	11,676,981	12,565,527
Deferred credits and other liabilities
Deferred compensation	1,399,242	1,499,264
Deferred pension costs & post-retirement benefits	8,304,784	7,680,065
Other	378,013	431,680
Total deferred credits and other liabilities	10,082,039	9,611,009
Common stockholders' equity
Common stock (common stock $5.00 par value per share. Authorized 3,500,000 shares; issued and outstanding 2,240,706 shares at June 30, 2013 and 2,220,271 shares at September 30, 2012)	11,203,530	11,101,355
Other paid-in capital	11,876,185	11,698,763
Retained earnings	2,853,690	1,421,918
Accumulated other comprehensive loss	(3,562,691)	(3,246,475)
Total common stockholders' equity	22,370,714	20,975,561
Total liabilities and capitalization	$ 53,423,730	$ 51,614,204