Segment Information Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ (3,533)	$ (7,429)	$ (10,526)	$ (16,893)
Gross Profit	12,601	12,007	25,227	23,155
Revenues	47,049	49,964	95,736	93,763
Operating Segments [Member] | Software-Systems [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	(967)	(1,848)	(3,869)	(4,712)
Gross Profit	7,945	5,816	13,273	11,014
Operating Segments [Member] | Embedded Products and Hardware Services [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	2,373	9	6,330	(819)
Gross Profit	6,725	8,397	16,069	16,532
Revenues	32,879
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	(4,939)	(5,590)	(12,987)	(11,362)
Gross Profit	$ (2,069)	$ (2,206)	$ (4,115)	$ (4,391)