Segment Information Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Revenues	$ 32,292	$ 28,773	$ 35,093	$ 37,610	$ 55,397	$ 61,288	$ 55,146	$ 40,561	$ 133,768	$ 212,392	$ 184,593
Gross Profit	$ 1,345	$ 1,195	$ 10,008	$ 8,222	$ 14,246	$ 15,445	$ 12,784	$ 13,613	20,770	56,088	52,152
Operating Income (Loss)									(46,783)	(9,659)	(14,065)
Operating Segments | Software-Systems
Segment Reporting Information [Line Items]
Revenues									47,730	56,783	55,006
Gross Profit									25,104	34,488	31,997
Operating Income (Loss)									(6,968)	(18)	(1,900)
Operating Segments | Hardware Solutions
Segment Reporting Information [Line Items]
Revenues									86,038	155,609	129,587
Gross Profit									3,530	29,660	28,311
Operating Income (Loss)									(18,571)	9,820	9,709
Corporate and other
Segment Reporting Information [Line Items]
Gross Profit									(7,864)	(8,060)	(8,156)
Operating Income (Loss)									$ (21,244)	$ (19,461)	$ (21,874)