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Business Segments and Geographic Areas (Details Textual) | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010
Business Segments and Geographic Areas (Textual) [Abstract] |  |
Revenue from shipyard customer | 12.00% | 17.00%

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- Details
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- Definition Revenue from shipyard customer. + References No definition available. + Details
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