Quarterly report pursuant to Section 13 or 15(d)

10. STOCK-BASED COMPENSATION (Details - Option activity)

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10. STOCK-BASED COMPENSATION (Details - Option activity) - Options [Member] - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Share-based compensation activity    
Options outstanding, beginning balance 9,799,036  
Options outstanding, granted 0  
Options outstanding, exercised 0  
Options outstanding, forfeited (76,036)  
Options outstanding, expired 0  
Options outstanding, ending balance 9,723,000 9,799,036
Options outstanding, exercisable 7,337,346  
Options outstanding, unvested 2,385,654  
Options outstanding, vested or expected to vest 9,723,000  
Weighted average exercise price, beginning balance $ 1.97  
Weighted average exercise price, granted  
Weighted average exercise price, exercised  
Weighted average exercise price, forfeited $ 2.82  
Weighted average exercise price, expired  
Weighted average exercise price, ending balance $ 1.97 $ 1.97
Weighted average exercise price, exercisable 2.10  
Weighted average exercise price, unvested 1.56  
Weighted average exercise price, vested or expected to vest $ 1.97  
Weighted average remaining contract term, ending term 8 years 11 months 16 days 9 years 2 months 12 days
Weighted average remaining contract term, exercisable 8 years 10 months 28 days  
Weighted average remaining contract term, unvested 9 years 1 month 10 days  
Weighted average remaining contract term, vested or expected to vest 8 years 11 months 16 days  
Aggregate intrinsic value, ending balance $ 159,800  
Aggregate intrinsic value, exercisable 124,550  
Aggregate intrinsic value, unvested 32,250  
Aggregate intrinsic value, vested or expected to vest $ 159,800