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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, CAPITALIZED AND DEFERRED INTEREST (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2012
SBC interest rate | 2.65% | 2.84% | 1.61%
Deferred interest | $ 586 | $ 653 | $ 878
Seven-Year Treasury Rate [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.06% |  |
NJNG [Member] |  |  |
AFUDC - Debt | 1,057 | 921 | 300
AFUDC - Equity | 1,562 | 2,037 | 638
Total | $ 2,619 | $ 2,958 | $ 938
Weighted average interest rate | 3.30% | 1.05% | 1.47%

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- Definition Amount of interest capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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