|
Summary of Significant Accounting Policies (Details Textual) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Summary of Significant Accounting Policies (Textual) [Abstract] | |||
| Maturity period of cash and cash equivalents | three months or less | ||
| Company's bank guarantees for customs clearance | $ 1,300,000 | $ 1,300,000 | |
| Company's charter payment escrow | 800,000 | 800,000 | |
| Funds restricted to secure the Company's drilling obligation | 10,000,000 | 10,000,000 | |
| Funds restricted for the abandonment of certain properties | 44,000 | 44,000 | |
| Date of maturity of certificates of deposit and commercial paper | not exceeding 90 days | ||
| Gains or Loss on foreign currency transactions | 400,000 | 1,000,000 | (600,000) |
| Bad debt expenses | 1,621,000 | 4,448,000 | |
|
Vaalco International [Member]
|
|||
| Property, Plant and Equipment [Line Items] | |||
| Company acquired the noncontrolling interest Amount | $ 26,200,000 | ||
| Noncontrolling interest owned issued and outstanding common stock | 9.99% | ||
| X | ||||||||||
|
- Definition
Bank guarantees for customs clearance. No definition available.
|
| X | ||||||||||
|
- Definition
Maturity period of cash and cash equivalents. No definition available.
|
| X | ||||||||||
|
- Definition
Cash equivalent maturity description. No definition available.
|
| X | ||||||||||
|
- Definition
Fund secure for abandonment of properties. No definition available.
|
| X | ||||||||||
|
- Definition
Fund secure for drilling obligations. No definition available.
|
| X | ||||||||||
|
- Definition
Noncontrolling interest ownership percentage before acquisition. No definition available.
|
| X | ||||||||||
|
- Definition
Payment to acquire noncontrolling interest. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|