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Organization, Summary of Significant Accounting Policies and Recent Developments (Details Narrative) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Percent voting interest |  |  |  |  |  |  |  |  | 50.00% |  |
Percent of operating revenues |  |  |  |  |  |  |  |  | 89.00% |  |
Percent of total assets |  |  |  |  |  |  |  |  | 98.00% |  |
Allowance for doubtful accounts | $ 800 |  |  |  | $ 600 |  |  |  | $ 800 | $ 600 |
Bad debt expense |  |  |  |  |  |  |  |  | 700 | 700 | 600
Operating Revenues | 27,079 | 32,353 | 27,401 | 23,546 | 23,300 | 28,671 | 26,102 | 23,996 | 110,379 | 102,069 | 102,735
Sayreville |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  | 1,900 |  |
Hess |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  | $ 2,600 |  |

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