Segment Information (Segment Balance Sheet Information) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Assets	$ 57,118	$ 37,263
Total capital expenditures	1,023	1,372
Unified Communications [Member]
Segment Reporting Information [Line Items]
Assets	20,789	21,884
Total capital expenditures	809	921
Telephone [Member]
Segment Reporting Information [Line Items]
Assets	36,329	15,379
Total capital expenditures	$ 214	$ 451