Discontinued Operations Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income from the ISDN resale services	$ 0	$ 11	$ 0	$ 29
ISDN Resale Services [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operations, Monthly Referral Fee Income			15.00%
Revenues from the ISDN resale services		0		(81)
Net income from the ISDN resale services		(11)
net current liabilities of discontinued operations				$ (50)