Regulatory Assets and Liabilities - Schedule Of Regulatory Assets And Liabilities (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
REGULATORY ASSETS
Regulatory Assets, Current	$ 4,097,822us-gaap_RegulatoryAssetsCurrent	$ 1,209,982us-gaap_RegulatoryAssetsCurrent
Regulatory Assets, Noncurrent	2,055,404us-gaap_RegulatoryAssetsNoncurrent	452,047us-gaap_RegulatoryAssetsNoncurrent
REGULATORY LIABILITIES
Regulatory Liability, Current	925,175us-gaap_RegulatoryLiabilityCurrent	793,184us-gaap_RegulatoryLiabilityCurrent
Regulatory Liability, Noncurrent	1,089,850us-gaap_RegulatoryLiabilityNoncurrent	964,462us-gaap_RegulatoryLiabilityNoncurrent
Recoverable Cost of Gas Purchases [Member]
REGULATORY ASSETS
Regulatory Assets, Current	692,117	1,209,982
Regulatory Assets, Noncurrent	0	0
Deferred Cost [Member]
REGULATORY ASSETS
Regulatory Assets, Current	489,996	0
Regulatory Assets, Noncurrent	1,715,006	0
Deferred Loss on Commodity Swaps [Member]
REGULATORY ASSETS
Regulatory Assets, Current	2,872,385	0
Regulatory Assets, Noncurrent	0	0
Income Taxes [Member]
REGULATORY ASSETS
Regulatory Assets, Current	0	0
Regulatory Assets, Noncurrent	296,819	296,819
REGULATORY LIABILITIES
Regulatory Liability, Current	0	0
Regulatory Liability, Noncurrent	83,161	83,161
Property Taxes [Member]
REGULATORY ASSETS
Regulatory Assets, Current	0	0
Regulatory Assets, Noncurrent	0	25,000
Rate Case Costs [Member]
REGULATORY ASSETS
Regulatory Assets, Current	43,324	0
Regulatory Assets, Noncurrent	43,579	130,228
Over Recovered Gas Pruchases [Member]
REGULATORY LIABILITIES
Regulatory Liability, Current	925,175	793,184
Regulatory Liability, Noncurrent	0	0
Asset Retirement Obligation Costs [Member]
REGULATORY LIABILITIES
Regulatory Liability, Current	0	0
Regulatory Liability, Noncurrent	$ 1,006,689	$ 881,301

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- Definition

Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 340

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

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Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.

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- Definition

The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 405

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394

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- Definition

The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

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