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Business acquisition legal settlement date.

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Forensic audit dollar coverage percentage of operation's revenue

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Percentage of reduction in project revenue due to impairment of goodwill.

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Amount of potential cash payments that could result from the contingent consideration arrangement.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

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Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

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Acquisition of TelWorx Communications LLC (Details Textual) (USD $)	3 Months Ended		1 Months Ended	3 Months Ended						3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Jul. 31, 2012 TelWorx Communications LLC [Member]	Dec. 31, 2012 TelWorx Communications LLC [Member]	Mar. 31, 2012 TelWorx Communications LLC [Member]	Mar. 31, 2013 TelWorx Communications LLC [Member]	Dec. 31, 2012 TelWorx Communications LLC [Member] Goodwill [Member]	Dec. 31, 2012 TelWorx Communications LLC [Member] Goodwill [Member] Estimated Fair Value [Member]	Dec. 31, 2012 TelWorx Communications LLC [Member] Goodwill [Member] Provisional Adjustments [Member]	Mar. 31, 2013 TelWorx Communications LLC [Member] Lexington, North Carolina [Member]	Mar. 31, 2013 TelWorx Communications LLC [Member] Pryor, Oklahoma [Member]
Acquisitions (Textual) [Abstract]
Purchase price acquisition, fair value						$ 16,100,000
Cash paid						16,000,000
Contingent consideration related to claims escrow						1,100,000
Potential earn-out at fair value						1,000,000
Goodwill impairment			16,100,000	12,500,000
Goodwill							12,550,000	9,491,000	3,059,000
Percentage of reduction in project revenue due to impairment of goodwill				17.00%
Period for continued use of operating facility										5 years	2 years
Reduction in total combined earnings		$ 200,000			$ 300,000
Forensic audit dollar coverage percentage of operation's revenue		50.00%
Legal settlement date	Mar. 27, 2013