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DEBT (Tables)
3 Months Ended
Mar. 31, 2019
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]

 

 

March 31,

2019

 

December 31,

2018

8.5% Notes

$

6,849,000

$

6,849,000

Unamortized debt discount

 

(403,538)

 

(1,575,094)

 

 

6,445,462

 

5,273,906

Less: Current portion

 

(6,445,462)

 

(5,273,906)

Long-term portion

$

$

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
For purposes of determining the debt discount, the underlying assumptions used in the binomial lattice model to determine the fair value of the 8.5% Warrants as of April 2018, were:

Current stock price

$  4.18

Exercise price

$  2.35

Risk-free interest rate

2.46 %

Expected dividend yield

Expected term (in years)

2.0

Expected volatility

134 %

Number of iterations

5