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Commitments (Details) (USD $) | 0 Months Ended | 12 Months Ended |  | 12 Months Ended | 0 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Nov. 02, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 Expiration Year One [Member] | Dec. 31, 2013 Expiration Year Two [Member] | Dec. 31, 2013 Expiration Year Three [Member] | Dec. 31, 2013 Executive Officer [Member] | Dec. 31, 2013 Chairman [Member] | Dec. 31, 2013 Minimum [Member] | Mar. 11, 1997 WCBB [Member] wells | Dec. 31, 2013 WCBB [Member] wells
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 |  |  |  |  |  |  |  |  |  |  | 20 |
Tenure Of Minimum Wells To Be Plugged |  |  |  |  |  |  |  |  |  |  | 20 years |
Plugging And Abandonment Escrow Account |  | 3,105,000 | 3,113,000 |  |  |  |  |  |  |  |  |
Number Of Wells Plugged |  |  |  |  |  |  |  |  |  |  |  | 354
Maximum annual contributions per employee (401K Plan) |  | 100.00% |  |  |  |  |  |  |  |  |  |
Minimum matching employer contribution for 401K |  |  |  |  |  |  |  |  |  | 3.00% |  |
Cost recognized on defined contribution plan |  | 600,000 | 400,000 | 300,000 |  |  |  |  |  |  |  |
Employment Agreement, Term | 3 years |  |  |  |  |  |  |  |  |  |  |
Employment Agreement, Subsequent Extension | 1 year |  |  |  |  |  |  |  |  |  |  |
Employment Agreement, Notice Period Allowed For Termination | 90 days |  |  |  |  |  |  |  |  |  |  |
Other Commitment |  |  |  |  |  |  |  | $ 3,500,000 | $ 1,100,000 |  |  |
Sales Commitment, Volume |  | 183,000 |  |  | 33,000 | 100,000 | 50,000 |  |  |  |  |

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- Definition Employment Agreement, Notice Period Allowed For Termination + References No definition available. + Details
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- Definition Number Of Wells Plugged + References No definition available. + Details
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- Definition payments to plugging and abandonment escrow account. + References No definition available. + Details
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- Definition Purchasing remaining percent interest in oil and gas property. + References No definition available. + Details
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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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