Impairment Loss (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Impairment loss	$ 3,558,000	$ 0	$ 0
Loss on contract termination	200,000
Software and Software Development Costs [Member]
Property, Plant and Equipment [Line Items]
Impairment loss	1,500,000
In Process Research and Development [Member]
Property, Plant and Equipment [Line Items]
Impairment loss	1,600,000
Other Intangible Assets [Member]
Property, Plant and Equipment [Line Items]
Impairment loss	300,000
Project Stella [Member]
Property, Plant and Equipment [Line Items]
Impairment loss	$ 3,400,000