SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 7) (USD $)	3 Months Ended						6 Months Ended		9 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2013	Jun. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Foreign Currency Translation and Transactions
Net loss	$ (4,169,000)	$ (3,213,000)	$ (4,904,000)	$ (32,063,000)	$ (4,554,000)	$ (2,003,000)	$ (8,117,000)	$ (6,557,000)	$ (12,286,000)	$ (38,620,000)
Foreign currency translation gain (loss)	373,000			230,000					12,000	205,000
Unrealized gain on available-for-sale securities				5,000						23,000
Comprehensive loss	(3,796,000)	(3,093,000)	(5,385,000)	(31,828,000)	(4,863,000)	(1,701,000)	(8,478,000)	(6,564,000)	(12,274,000)	(38,392,000)
Advertising Costs
Advertising expense	$ 15,900,000			$ 16,900,000					$ 43,400,000	$ 47,600,000