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Stockholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2016
Schedule Of Share Based Compensation Warrants Activity [Table Text Block]
The Company has the following warrants outstanding at June 30, 2016:
 
 
 
 
Total Outstanding Warrants
 
Exercise Price
 
Warrants
 
Weighted Average
Exercise Price
 
Life
(in years)
 
$
1.80
 
 
80,000
 
$
1.80
 
 
4.64
 
$
5.00
 
 
345,000
 
$
5.00
 
 
0.82
 
$
10.00
 
 
20,313
 
$
10.00
 
 
2.68
 
 
 
 
 
445,313
 
$
4.65
 
 
 
 
Employee Stock Option [Member]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The following weighted-average assumptions were utilized in the calculation of the fair value of the stock options:
 
Expected life
 
6.25 years
 
Weighted average volatility
 
73
%
Forfeiture rate
 
12
%
Weighted average risk-free interest rate
 
1.56
%
Expected dividend rate
 
0
%