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Related Party Transactions (Details Textual) (USD $)	3 Months Ended
Related Party Transactions (Details Textual) (USD $)	Mar. 31, 2014	Mar. 31, 2013
White Cliffs Pipeline, L.L.C. [Member]
Related Party Transactions (Textual) [Abstract]
Revenues	$ 800,000	$ 600,000
Related Party Transaction, Expenses from Transactions with Related Party	900,000
Law Firm [Member]
Related Party Transactions (Textual) [Abstract]
Legal fees	300,000	500,000
White Cliffs Pipeline, L.L.C. [Member] \| Law Firm [Member]
Related Party Transactions (Textual) [Abstract]
Legal fees	$ 54,000

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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