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SUBSEQUENT EVENTS (Details Narative) - USD ($)
 1 Months Ended 2 Months Ended 12 Months Ended
Jan. 12, 2016
Jan. 31, 2016
Feb. 17, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Shares issued in offerings, net of cost       $ 91,374,649 $ 42,771,353 $ 78,650,353
Shares issued for exercise of options       1,232,579 345,746 $ 30,910
Shares issued for exercise of options, shares           75,423
Shares issued in exercise of warrants       $ 366,000 $ 181,000  
Subsequent Event- Underwriting Agreement [Member]            
Shares issued in offerings, net of cost $ 134,900,000          
Shares issued in offerings, net of cost, shares 15,151,515   17,424,242      
Share price (in dollars per share) $ 8.25          
Number of days of the option to purchase shares 30 days          
Options Granted 2,272,727          
Subsequent Event - Exercises [Member]            
Shares issued for exercise of options   $ 758,000        
Shares issued for exercise of options, shares   281,657        
Shares issued in exercise of warrants   $ 1,285,000        
Shares issued in exercise of warrants, shares   500,000