Segment Information (Segment Income Statement Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Operating Revenues	$ 7,754us-gaap_Revenues	$ 7,524us-gaap_Revenues
Cost of services and products	3,143us-gaap_CostOfGoodsAndServicesSold	3,052us-gaap_CostOfGoodsAndServicesSold
Selling, general and administration expense	5,055	5,698
Depreciation and amortization	1,242	903
Restructuring costs and other special charges		100us-gaap_RestructuringCharges
Total operating expenses	9,440us-gaap_OperatingExpenses	9,753us-gaap_OperatingExpenses
Operating loss	(1,686)us-gaap_OperatingIncomeLoss	(2,229)us-gaap_OperatingIncomeLoss
Interest income (expense), net	9us-gaap_InterestIncomeExpenseNet	(139)us-gaap_InterestIncomeExpenseNet
Income from investment		2,040
Other income, net	1,501us-gaap_OtherNonoperatingIncomeExpense	21us-gaap_OtherNonoperatingIncomeExpense
Loss before income taxes	(176)	(307)
Unified Communications [Member]
Segment Reporting Information [Line Items]
Operating Revenues	4,461	4,211
Cost of services and products	2,163	2,026
Selling, general and administration expense	3,123	3,661
Depreciation and amortization	860	521
Restructuring costs and other special charges		56
Total operating expenses	6,146	6,264
Operating loss	(1,685)	(2,053)
Telephone [Member]
Segment Reporting Information [Line Items]
Operating Revenues	3,293	3,313
Cost of services and products	980	1,026
Selling, general and administration expense	1,932	2,037
Depreciation and amortization	382	382
Restructuring costs and other special charges		44
Total operating expenses	3,294	3,489
Operating loss	$ (1)	$ (176)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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