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6. STOCK-BASED COMPENSATION (Details Narrative) (USD $)
In Thousands, except Share data, unless otherwise specified
 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Total intrinsic value of options and warrants $ 5,900 $ 2,300
Total unrecognized stock-based compensation expense related to non-vested employee awards 82,310  
Expected period of recognition over a weighted average period 1 year 7 months 6 days  
2006 Plan
    
Common stock reserved for issuance 11,000,000  
Stock options outstanding 2,272,167  
Stock options vested 2,062,167  
Options, warrants and RSU's outstanding 5,003,952  
Options, warrants and RSU's exercised 2,141,583  
Options, warrants and RSU's available for grant 3,854,465  
RestrictedStockMember
    
Total unrecognized stock-based compensation expense related to non-vested employee awards $ 1,300  
RestrictedStockMember
    
Expected period of recognition over a weighted average period 2 years 9 months  
Restricted stock awards granted 1,011,785