Segment Information Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ (2,016)	$ (4,103)	$ (12,542)	$ (20,996)
Gross Profit	13,007	14,697	38,234	37,852
Revenues	44,780	50,805	140,516	144,568
Operating Segments [Member] | Software-Systems [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	743	13	(3,126)	(4,699)
Gross Profit	9,081	7,857	22,354	18,871
Revenues	15,477	11,620	39,336	29,861
Operating Segments [Member] | Embedded Products and Hardware Services [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	1,782	1,307	8,112	488
Gross Profit	5,973	8,940	22,043	25,472
Revenues	29,303	39,185	101,180	114,707
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	(4,541)	(5,423)	(17,528)	(16,785)
Gross Profit	$ (2,047)	$ (2,100)	$ (6,163)	$ (6,491)