Segment Information (Segment Reporting Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Assets	$ 41,322		$ 41,322		$ 43,445
Operating Revenues	7,447	6,886	15,187	13,967
Cost of services and products	3,215	3,434	7,004	6,982
Selling, general and administration expense	6,329	5,603	13,681	11,011
Depreciation and amortization	961	1,296	1,963	2,575
Total operating expenses	10,505	10,333	22,648	20,568
Operating Loss	(3,058)	(3,447)	(7,461)	(6,601)
Unified Communications [Member]
Segment Reporting Information [Line Items]
Assets	22,800		22,800		23,500
Operating Revenues	3,920	3,252	7,876	6,526
Cost of services and products	2,015	2,198	4,585	4,504
Selling, general and administration expense	3,863	3,724	8,604	7,036
Depreciation and amortization	564	467	1,182	894
Total operating expenses	6,442	6,389	14,371	12,434
Operating Loss	(2,522)	(3,137)	(6,495)	(5,908)
Telephone [Member]
Segment Reporting Information [Line Items]
Assets	18,522		18,522		19,945
Operating Revenues	3,527	3,634	7,311	7,441
Cost of services and products	1,200	1,236	2,419	2,478
Selling, general and administration expense	2,466	1,879	5,077	3,975
Depreciation and amortization	397	829	781	1,681
Total operating expenses	4,063	3,944	8,277	8,134
Operating Loss	$ (536)	$ (310)	$ (966)	$ (693)