Property, Plant and Equipment (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 34,286	$ 35,802
Accumulated depreciation	(23,742)	(26,168)
Total property, plant and equipment, net	10,544	9,634
Automobiles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 23	23
Estimated Useful Life (in years)	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,974	2,144
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	5 years
Leasehold improvements | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	20 years
Computer software and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 23,209	25,397
Computer software and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Computer software and equipment | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	7 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 6,709	6,709
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Machinery and equipment | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	5 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,240	1,108
Estimated Useful Life (in years)	5 years
Work in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,131	$ 421