Segment Reporting and Geographic Information (Balance Sheet and Statement of Cash Flow Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Additions to Fixed Assets	$ 352	$ 955
Assets	125,376		127,947
Network Equipment [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	239	922
Assets	45,329		48,955
Network Integration [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	33	32
Assets	57,495		54,625
Corporate [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	80	1
Corporate Unallocated and Intersegment Adjustments [Member]
Segment Reporting Information [Line Items]
Assets	$ 22,552		$ 24,367