Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Technology acquired	$ 1,150	$ 1,150
Customer relationships	200	200
Covenant-not-to-compete	200	200
Backlog	200	200
Gross value	1,750	1,750
Accumulated amortization	(1,682)	(1,547)
Carrying value	68	203
Trademarks and trade names	500	500
Foreign currency translation	(111)	(119)
Trademarks and trade names	389	381
Total intangible assets, net	457	584
Electronic Devices [Member]
Covenant-not-to-compete	200	200
Backlog	200	200
Gross value	400	400
Accumulated amortization	(400)	(400)
Trademarks and trade names	500	500
Foreign currency translation	(111)
Trademarks and trade names	389	381
Total intangible assets, net	389	381
Communications Equipment [Member]
Technology acquired	1,150	1,150
Customer relationships	200	200
Gross value	1,350	1,350
Accumulated amortization	(1,282)	(1,147)
Carrying value	68	203
Foreign currency translation
Total intangible assets, net	$ 68	$ 203