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STOCK BASED COMPENSATION (Tables)
6 Months Ended
Jun. 30, 2017
Employee Stock Option [Member]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair value of each option award is estimated using the Black-Scholes valuation model. Assumptions used in calculating the fair value at June 30, 2017 were as follows:
 
 
 
Weighted
 
 
 
Average
 
 
 
Inputs Used
 
 
 
 
 
Annual dividend yield
 
$
-
 
Expected life (years)
 
 
6.55
 
Risk-free interest rate
 
 
1.42
%
Expected volatility
 
 
85.08
%
Common stock price
 
$
0.45