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Commitments (Details Textual)	3 Months Ended
	Mar. 31, 2013
Commitments (Textual) [Abstract]
Office space	6,000
Austin [Member]
Operating Leased Assets [Line Items]
Operating lease expiration year	2014

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- Details

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- Definition

Operating lease expiration year.

+ References

No definition available.

+ Details

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- Definition

Net rentable area for properties owned.

+ References

No definition available.

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Period Type:	instant

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- Details

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