Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities [Abstract]
Net income	$ 1,609,601	$ 1,900,512
Adjustments to reconcile net income to net cash used in operating activities [Abstract]
Depreciation	1,028,002	525,199
Amortization of debt issuance costs	34,768	23,692
Regulatory Amortizations	1,309,240	1,309,697
Stock issued for services and stock option expense	118,801	91,653
Pension adjustment	(373,796)	(59,275)
Loss (Gain) on sale of marketable securities	4,753	(13,557)
Deferred income taxes	127,286	1,100,547
Bad debt expense	129,364	160,349
(Increase) decrease in [Abstract]
Accounts receivable	(861,486)	(670,687)
Gas stored underground	789,564	783,506
Materials and supplies inventories	48,108	(164,640)
Prepaid expenses	682,477	547,246
Unrecovered gas costs	1,075,879	123,099
Deferred regulatory costs	(246,938)	(40,189)
Other	(63,740)	(68,158)
Increase (decrease) in [Abstract]
Accounts payable	334,656	368,483
Accrued expenses	(161,866)	41,183
Customer deposits and accrued interest	(493,862)	(405,213)
Deferred compensation	(87,995)	(21,367)
Deferred pension costs & post-retirement benefits	(13,437)	(205,026)
Other liabilities and deferred credits	17,189	41,514
Net cash (used in) provided by operating activities	5,006,568	5,368,569
Cash flows from investing activities [Abstract]
Purchase of securities available-for-sale	(1,765,423)	(1,300,638)
Sale of securities available-for-sale	1,691,527	1,338,878
Capital expenditures	(2,519,436)	(3,222,472)
Net cash (used in) provided by investing activities	(2,593,332)	(3,184,232)
Cash flows from financing activities [Abstract]
Proceeds under lines-of-credit	10,348,509	11,676,362
Repayment of lines-of-credit	(13,130,200)	(13,765,433)
Debt issuance cost expense	(13,053)	(45,138)
Cash received from sale of stock	217,607	360,000
Dividends paid	(569,521)	(380,438)
Proceeds under long-term debt	1,878,000	1,091,912
Repayment of long-term debt	(1,053,023)	(1,084,255)
Net cash (used in) provided by financing activities	(2,321,681)	(2,146,990)
Net (decrease) increase in cash	91,555	37,347
Cash and cash equivalents at beginning of period	69,552	177,566
Cash and cash equivalents at end of period	161,107	214,913
Cash paid during the period for [Abstract]
Interest	666,663	686,354
Income taxes	$ 541,913	$ 124,073

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