Annual report pursuant to Section 13 and 15(d)

Equity Incentive Plan (Tables)

v3.8.0.1
Equity Incentive Plan (Tables)
12 Months Ended
Dec. 31, 2017
Share Based Compensation Option And Incentive Plan [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
The following is a summary of stock option activity for the twelve months ended December 31, 2017 and 2016:
 
 
 
Number of Options
 
Weighted-
Average
Exercise Price
 
Weighted-Average
Contractual Life
(In Years)
 
Outstanding at December 31, 2015
 
 
1,277,367
 
$
2.75
 
 
4.94
 
Granted
 
 
377,771
 
 
2.74
 
 
9.79
 
Exercised
 
 
(86,765)
 
 
0.65
 
 
 
 
Forfeited
 
 
(58,662)
 
 
3.31
 
 
 
 
Outstanding at December 31, 2016
 
 
1,509,711
 
$
2.85
 
 
5.04
 
Granted
 
 
568,450
 
 
1.39
 
 
9.41
 
Exercised
 
 
(61,078)
 
 
0.67
 
 
 
 
Expired
 
 
(92,630)
 
 
2.10
 
 
 
 
Forfeited
 
 
(31,450)
 
 
2.99
 
 
 
 
Outstanding at December 31, 2017
 
 
1,893,003
 
$
2.49
 
 
5.40
 
Exercisable at December 31, 2017
 
 
1,208,450
 
$
2.73
 
 
4.87
 
Vested and Expected to Vest at December 31, 2017
 
 
1,208,450
 
$
2.73
 
 
4.87
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
For the twelve months ended December 31, 2017 and 2016, the fair value of each option grant has been estimated on the date of grant using the Black-Scholes Option Pricing Model with the following weighted-average assumptions:
 
 
 
2017
 
2016
 
Risk-Free Interest Rate
 
 
1.82
%
 
1.82
%
Expected Life
 
 
7.25 years
 
 
7.00 years
 
Expected Volatility
 
 
170
%
 
99
%
Expected Dividend Yield
 
 
0
%
 
0
%
Employee and Non Employee Service Share Based Compensation Allocation off Recognized Period Costs [Table Text Block]
The total stock-based compensation expense for employees and non-employees is included in the accompanying Consolidated Statements of Operations and as follows:
 
 
 
Year Ended December 31
 
 
 
2017
 
2016
 
Research and Development
 
$
193,688
 
$
46,288
 
General and Administrative
 
 
676,620
 
 
464,707
 
 
 
$
870,308
 
$
510,995