Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net Revenue
Operating revenues	$ 7,604	$ 7,447	$ 15,128	$ 15,187
Operating expenses:
Cost of services and products (exclusive of depreciation and amortization expense)	2,867	3,215	5,919	7,004
Selling, general and administrative expenses	5,262	6,226	11,060	13,474
Depreciation and amortization	919	961	1,822	1,963
Total operating expenses	9,048	10,402	18,801	22,441
Operating income (loss)	(1,444)	(2,955)	(3,673)	(7,254)
Other income (expense)
Interest income (expense), net	(54)	(178)	(193)	(414)
Income from investment	50,333	3,250	52,373	6,500
Other income (expense), net	6	29	27	137
Total other income	50,285	3,101	52,207	6,223
Income (loss) before income taxes	48,841	146	48,534	(1,031)
Income tax expense (benefit)	17,304	155	17,246	(351)
Net income (loss)	31,537	(9)	31,288	(680)
Preferred dividends	7	7	13	13
Income (loss) applicable to common stock and participating securities	31,530	(16)	31,275	(693)
Basic earnings (loss) per share	$ 5.19		$ 5.11	$ (0.12)
Diluted earnings (loss) per share	$ 5.19		$ 5.11	$ (0.12)
Weighted average shares of common stock used to calculate earnings per share
Basic	5,917	5,775	5,842	5,760
Diluted	5,917	5,775	5,842	5,760
Dividends declared per common share		$ 0.27		$ 0.54
Unified Communications [Member]
Net Revenue
Operating revenues	4,234	3,920	8,445	7,876
Operating expenses:
Cost of services and products (exclusive of depreciation and amortization expense)	1,889	2,015	3,915	4,585
Selling, general and administrative expenses	3,351	3,811	7,068	8,500
Depreciation and amortization	539	564	1,060	1,182
Total operating expenses	5,779	6,390	12,043	14,267
Operating income (loss)	(1,545)	(2,470)	(3,598)	(6,391)
Telephone [Member]
Net Revenue
Operating revenues	3,370	3,527	6,683	7,311
Operating expenses:
Cost of services and products (exclusive of depreciation and amortization expense)	978	1,200	2,004	2,419
Selling, general and administrative expenses	1,911	2,415	3,992	4,974
Depreciation and amortization	380	397	762	781
Total operating expenses	3,269	4,012	6,758	8,174
Operating income (loss)	$ 101	$ (485)	$ (75)	$ (863)