SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 6)	12 Months Ended						12 Months Ended			12 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2012 GYD	Dec. 31, 2011 GYD	Dec. 31, 2010 USD ($)	Dec. 31, 2010 GYD	Dec. 31, 2012 Island Wireless USD ($)	Dec. 31, 2011 Island Wireless USD ($)	Dec. 31, 2010 Island Wireless USD ($)	Dec. 31, 2011 Certain Island Wireless Reporting Unit USD ($)	Dec. 31, 2012 Recurring Quoted Prices in Active Markets (Level 1) USD ($)	Dec. 31, 2011 Recurring Quoted Prices in Active Markets (Level 1) USD ($)	Dec. 31, 2012 Recurring Significant Other Observable Inputs (Level 2) USD ($)	Dec. 31, 2011 Recurring Significant Other Observable Inputs (Level 2) USD ($)	Dec. 31, 2012 Recurring Total USD ($)	Dec. 31, 2011 Recurring Total USD ($)
Foreign Currency Gains and Losses
Value of a Guyana dollar to one U.S. dollar			205	205		205
Fair value of financial instruments
Goodwill impairment		$ 2,425,000						$ 2,425,000		$ 2,400,000
Goodwill	45,077,000	45,077,000			44,397,000		5,438,000	5,438,000	4,758,000	0
Telecommunications license impairment	3,400,000						3,400,000
Certificates of deposit													363,000	3,366,000	363,000	3,366,000
Money market funds											1,755,000	3,847,000			1,755,000	3,847,000
Total assets measured at fair value											1,755,000	3,847,000	363,000	3,366,000	2,118,000	7,213,000
Interest rate derivative													11,142,000	11,337,000	11,142,000	11,337,000
Total liabilities measured at fair value													$ 11,142,000	$ 11,337,000	$ 11,142,000	$ 11,337,000