Segment Reporting and Geographic Information (Balance Sheet and Statement of Cash Flow Information) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Additions to Fixed Assets	$ 1,914	$ 2,738
Assets	118,883		127,947
Network Equipment [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	1,736	2,679
Assets	42,457		48,955
Network Integration [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	95	53
Assets	58,259		54,625
Corporate [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	83	6
Corporate Unallocated and Intersegment Adjustments [Member]
Segment Reporting Information [Line Items]
Assets	$ 18,167		$ 24,367