STOCK-BASED COMPENSATION (Details - P&L Impact) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Non-cash compensation expense related to equity awards
Total non-cash compensation	$ 2,057	$ 1,421	$ 4,393	$ 3,073
Cost of revenue
Non-cash compensation expense related to equity awards
Total non-cash compensation	24	7	44	13
Selling and marketing expense
Non-cash compensation expense related to equity awards
Total non-cash compensation	385	226	655	459
General and administrative expense
Non-cash compensation expense related to equity awards
Total non-cash compensation	1,125	928	2,731	1,989
Product development
Non-cash compensation expense related to equity awards
Total non-cash compensation	385	260	825	576
Restructuring and severance
Non-cash compensation expense related to equity awards
Total non-cash compensation	$ 138	$ 0	$ 138	$ 36