Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment (Details Textual)

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Property and Equipment (Details Textual) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Property, Plant and Equipment [Abstract]    
Amount of depreciation of property and equipment recognized $ 832corr_AmountOfDepreciationOfPropertyAndEquipmentRecognized $ 71corr_AmountOfDepreciationOfPropertyAndEquipmentRecognized