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Commitments (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Commitments (Textual) [Abstract]
Rent expenses	$ 0.6	$ 0.6	$ 0.6

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- Details

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X

- Definition

Rental expenses.

+ References

No definition available.

+ Details

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