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Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Discontinued Operations |  |  |  |
After-tax loss from discontinued operations |  |  | $ 15 | $ 54
Interest expense allocated to discontinued operations |  |  | 0 |
Revenue and pre-tax income (loss) related to discontinued operations |  |  |  |
Revenue | 12 | 49 | 12 | 22
Pre-tax loss |  |  | (25) | (93)
Operation located in Delaware | Maximum |  |  |  |
Discontinued Operations |  |  |  |
After-tax loss from discontinued operations |  |  | $ 100 | $ 100

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