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Restricted Cash	9 Months Ended
Restricted Cash	Sep. 30, 2012
Restricted Cash [Abstract]
Restricted Cash	3. Restricted Cash Restricted cash consists of cash held in an escrow account for the prepayment of operations and invoices for an ongoing contractual project. The account has also been recorded as a liability in current deposits on the Consolidated Balance Sheets at September 30, 2012 and December 31, 2011.

Tabular disclosure of the cash and cash items which are restricted as to withdrawal or usage. The provisions of any restrictions are described in a note to the financial statements. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits.

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