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Commitments and Contingencies (Details) |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 29, 2015 USD ($) shares | Mar. 13, 2015 | Apr. 22, 2014 | Nov. 01, 2012 | Dec. 31, 1997 USD ($) well | Sep. 30, 2015 USD ($) well | Dec. 31, 2014 USD ($)
Commitments [Line Items] |  |  |  |  |  |  |
Plugging And Abandonment Escrow Account |  |  |  |  |  | $ 3,089,000 | $ 3,097,000
Employment Agreement, Term |  |  |  | 3 years |  |  |
Employment Agreement, Subsequent Extension |  |  |  | 1 year |  |  |
Employment Agreement, Notice Period Allowed For Termination |  |  |  | 90 days |  |  |
Other Commitment |  |  |  |  |  | 157,320,000 |
Chief Executive Officer [Member] |  |  |  |  |  |  |
Commitments [Line Items] |  |  |  |  |  |  |
Other Commitment |  |  |  |  |  | 400,000 |
Employment agreement, annual salary | $ 460,000 |  |  |  |  |  |
Chief Operating Officer [Member] |  |  |  |  |  |  |
Commitments [Line Items] |  |  |  |  |  |  |
Employment Agreement, Term |  | 2 years |  |  |  |  |
Chief Financial Officer [Member] |  |  |  |  |  |  |
Commitments [Line Items] |  |  |  |  |  |  |
Employment Agreement, Term |  | 3 years | 3 years |  |  |  |
Management [Member] |  |  |  |  |  |  |
Commitments [Line Items] |  |  |  |  |  |  |
Other Commitment |  |  |  |  |  | $ 1,500,000 |
WCBB [Member] |  |  |  |  |  |  |
Commitments [Line Items] |  |  |  |  |  |  |
Purchasing Remaining Percent Interest In Oil And Gas Property |  |  |  |  | 50.00% |  |
Payments Held For Restricted Cash |  |  |  |  | $ 18,000 |  |
Significant Plugging Commitment Minimum Number Of Wells To Be Plugged | well |  |  |  |  | 20 |  |
Tenure Of Minimum Wells To Be Plugged |  |  |  |  | 20 years |  |
Number Of Wells Plugged | well |  |  |  |  |  | 463 |
Restricted Stock [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |
Commitments [Line Items] |  |  |  |  |  |  |
Employment agreement, annual grant (in shares) | shares | 40,000 |  |  |  |  |  |
Employment agreement, percent of salary awarded in shares | 500.00% |  |  |  |  |  |

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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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