Acquisition of TelWorx Communications LLC - Pro Forma Financial Information for TelWorx (Detail) (TelWorx Communications LLC [Member], Pro Forma [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
TelWorx Communications LLC [Member] | Pro Forma [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
REVENUES	$ 23,841	$ 44,482
LOSS BEFORE INCOME TAXES	$ 290	$ (575)