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STOCK-BASED COMPENSATION (Details - P&L Impact) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Non-cash compensation expense related to equity awards    
Total non-cash compensation $ 2,336us-gaap_AllocatedShareBasedCompensationExpense $ 1,616us-gaap_AllocatedShareBasedCompensationExpense
Cost of revenue    
Non-cash compensation expense related to equity awards    
Total non-cash compensation 20us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember		 6us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
Selling and marketing expense    
Non-cash compensation expense related to equity awards    
Total non-cash compensation 270us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingAndMarketingExpenseMember		 233us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_SellingAndMarketingExpenseMember
General and administrative expense    
Non-cash compensation expense related to equity awards    
Total non-cash compensation 1,606us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember		 1,061us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember
Product development    
Non-cash compensation expense related to equity awards    
Total non-cash compensation $ 440us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_ResearchAndDevelopmentExpenseMember		 $ 316us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_ResearchAndDevelopmentExpenseMember