Intangibles Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Summary of intangible assets
Gross Assets	$ 31,223	$ 31,223
Accumulated Amortization	(27,420)	(27,252)
Intangible Assets, net	3,803	3,971
Customer lists and relationships acquired
Summary of intangible assets
Gross Assets	16,663	16,663
Accumulated Amortization	(16,380)	(16,354)
Intangible Assets, net	283	309
Technology and patents
Summary of intangible assets
Gross Assets	13,312	13,312
Accumulated Amortization	(10,469)	(10,347)
Intangible Assets, net	2,843	2,965
Trade names and trade marks
Summary of intangible assets
Gross Assets	1,194	1,194
Accumulated Amortization	(571)	(551)
Intangible Assets, net	623	643
Domain name
Summary of intangible assets
Gross Assets	54	54
Intangible Assets, net	$ 54	$ 54