Property, Plant and Equipment (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 18,406	$ 18,820
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(14,297)	(14,445)
Property, plant and equipment, net	4,109	4,375
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	2,276	3,082
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	9,597	9,471
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	5,351	4,927
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	1,125	1,281
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 57	$ 59