Segment Reporting and Geographic Information (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 segment	Sep. 30, 2013	Sep. 30, 2014 Network Integration [Member]	Sep. 30, 2013 Network Integration [Member]	Sep. 30, 2014 Network Integration [Member]	Sep. 30, 2013 Network Integration [Member]	Sep. 30, 2014 Network Integration [Member] Major Customer, One [Member]	Sep. 30, 2013 Network Integration [Member] Major Customer, One [Member]	Sep. 30, 2014 Network Integration [Member] Major Customer, One [Member]	Sep. 30, 2013 Network Integration [Member] Major Customer, One [Member]	Sep. 30, 2014 Network Integration [Member] Major Customer, Two [Member]	Sep. 30, 2013 Network Integration [Member] Major Customer, Two [Member]	Sep. 30, 2014 Network Integration [Member] Major Customer, Two [Member]	Sep. 30, 2013 Network Integration [Member] Major Customer, Two [Member]	Sep. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Sep. 30, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Sep. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Sep. 30, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Sep. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Sep. 30, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Sep. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Sep. 30, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Sep. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Accounts Receivable [Member] Major Customer, One [Member]	Dec. 31, 2013 Network Integration [Member] Customer Concentration Risk [Member] Accounts Receivable [Member] Major Customer, One [Member]	Sep. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Accounts Receivable [Member] Major Customer, Two [Member]	Dec. 31, 2013 Network Integration [Member] Customer Concentration Risk [Member] Accounts Receivable [Member] Major Customer, Two [Member]
Segment Reporting Information [Line Items]
Number of Business Segments			2
Revenue	$ 43,170	$ 38,385	$ 128,612	$ 115,465	$ 21,237	$ 15,585	$ 62,644	$ 50,701	$ 11,000	$ 10,400	$ 33,800	$ 32,500	$ 6,100	$ 4,000	$ 20,200	$ 12,900
Concentration percentage																	25.00%	27.00%	26.00%	28.00%	14.00%	10.00%	16.00%	11.00%	12.00%	22.00%	29.00%	27.00%