| 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 | ||||||||