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STOCK PURCHASE WARRANTS (Tables)
6 Months Ended
Jun. 30, 2016
Warrants and Rights Note Disclosure [Abstract]  
Schedule of warrants outstanding
The following warrants were outstanding at June 30, 2016,
Schedule of assumptions used in calculating estimated fair value of warrants
The assumptions used by the Company are summarized in the following tables:
August 2013 Warrants
 
June 30, 2016
 
December 31, 2015
Closing stock price
 
$
2.25

 
$
2.58

Expected dividend rate
 
%
 
%
Expected stock price volatility
 
85.9
%
 
91.4
%
Risk-free interest rate
 
0.6
%
 
1.3
%
Expected life (years)
 
2.13

 
2.63