Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue:
Telecommunications services sold	$ 27,163	$ 21,202	$ 51,881	$ 41,604
Operating expenses:
Cost of telecommunications services provided	19,042	14,808	36,509	29,191
Selling, general and administrative expense	4,959	4,606	9,687	9,078
Restructuring costs, employee termination and other items	701	958	701	958
Depreciation and amortization	1,590	889	2,728	1,565
Total operating expenses	26,292	21,261	49,625	40,792
Operating income (loss)	871	(59)	2,256	812
Other income (expense):
Interest expense, net	(1,155)	(459)	(2,005)	(776)
Other income (expense), net	(93)	(24)	(741)	(81)
Total other income (expense)	(1,248)	(483)	(2,746)	(857)
Loss before income taxes	(377)	(542)	(490)	(45)
Provision for income taxes	124	35	261	68
Net loss	$ (501)	$ (577)	$ (751)	$ (113)
Earnings (loss) per share:
Basic (in dollars per share)	$ (0.03)	$ (0.03)	$ (0.04)	$ (0.01)
Diluted (in dollars per share)	$ (0.03)	$ (0.03)	$ (0.04)	$ (0.01)
Weighted average shares:
Basic (in shares)	18,949,666	18,687,822	18,853,013	18,464,801
Diluted (in shares)	18,949,666	18,687,822	18,853,013	18,464,801