Segment Reporting and Geographic Information (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended			12 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 segments	Jun. 30, 2013	Jun. 30, 2014 Network Integration [Member]	Jun. 30, 2013 Network Integration [Member]	Jun. 30, 2014 Network Integration [Member]	Jun. 30, 2013 Network Integration [Member]	Jun. 30, 2014 Network Integration [Member] Major Customer, One [Member]	Jun. 30, 2013 Network Integration [Member] Major Customer, One [Member]	Jun. 30, 2014 Network Integration [Member] Major Customer, One [Member]	Jun. 30, 2013 Network Integration [Member] Major Customer, One [Member]	Jun. 30, 2014 Network Integration [Member] Major Customer, Two [Member]	Jun. 30, 2013 Network Integration [Member] Major Customer, Two [Member]	Jun. 30, 2014 Network Integration [Member] Major Customer, Two [Member]	Jun. 30, 2013 Network Integration [Member] Major Customer, Two [Member]	Jun. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Jun. 30, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Jun. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Jun. 30, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Jun. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Jun. 30, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Jun. 30, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Jun. 30, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Jun. 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]	Jun. 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	$ 43,124	$ 38,175	$ 85,442	$ 77,080	$ 21,355	$ 17,135	$ 41,408	$ 35,117	$ 12,600	$ 10,800	$ 23,600	$ 22,200	$ 7,700	$ 4,100	$ 14,200	$ 9,000
Concentration percentage																	29.00%	29.00%	28.00%	29.00%	18.00%	11.00%	17.00%	12.00%	25.00%	22.00%	28.00%	27.00%