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Financial Instruments (Details) (FASI [Member])
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3 Months Ended | 9 Months Ended |
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Sep. 30, 2012
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Sep. 30, 2012
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FASI [Member]
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| Concentrations of Credit Risk [Abstract] | ||
| Number of customers accounting for majority of FASI annual operating revenue | 3 | 3 |
| Concentration Risk, Other Risk | 60.20% | 60.90% |
| X | ||||||||||
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- Definition
The number of customers which account for the majority of the operating revenue as of the reporting date. No definition available.
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| X | ||||||||||
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- Definition
Percentage of revenue provided by major customers No definition available.
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| X | ||||||||||
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- Details
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