Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment, Net (Details Textual)

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Property and Equipment, Net (Details Textual) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Property and Equipment, Net (Textual) [Abstract]        
Depreciation and amortization expense of property and equipment $ 1.0 $ 1.2 $ 3.4 $ 3.5