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Investment in American Shale Oil, LLC (Details 1) (AMSO, LLC [Member], USD $) In Thousands, unless otherwise specified | Jun. 30, 2014
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AMSO, LLC [Member] |
Maximum exposure to additional loss |
AMSO's committed investment in AMSO, LLC based on the budget for the remainder of 2014 | $ 445
Less: cumulative capital contributions to AMSO, LLC |
Less: liability for equity loss in AMSO, LLC at March 31, 2014 | (252)
Maximum exposure to additional loss | $ 193

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