Unbilled Revenue (Details)	Mar. 31, 2016 USD ($) Mcf	Jun. 30, 2015 USD ($) Mcf
Deferred Revenue Arrangement [Line Items]
Unbilled revenues	$ 3,909,000	$ 1,674,000
Unbilled gas costs	$ 1,293,000	$ 462,000
Unbilled volumes (in Mcf) \| Mcf	316,000	69,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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