Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plan (Tables)

v3.19.1
Equity Incentive Plan (Tables)
3 Months Ended
Mar. 31, 2019
Share Based Compensation Option And Incentive Plan [Abstract]  
Share-based Compensation, Stock Options, Activity [Table Text Block]
The following is a summary of stock option activity for the three months ended March 31, 2019 and 2018: 
 
 
 
Number of

Options
 
 
Weighted- Average

Exercise Price
 
 
Weighted-Average

Contractual Life

(In Years)
 
Outstanding at December 31, 2018
 
 
2,076,153
 
 
$
2.28
 
 
 
6.51
 
Granted
 
 
750,000
 
 
 
0.48
 
 
 
 
 
Expired
 
 
(48,737
)
 
 
1.08
 
 
 
 
 
Outstanding at March 31, 2019
 
 
2,777,416
 
 
$
1.81
 
 
 
7.34
 
Exercisable at March 31, 2019
 
 
1,593,224
 
 
$
2.70
 
 
 
5.78
 
Vested and Expected to Vest at March 31, 2019
 
 
2,777,416
 
 
$
1.81
 
 
 
7.34
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Outstanding at December 31, 2017
 
 
1,893,003
 
 
$
2.49
 
 
 
5.40
 
Granted
 
 
275,500
 
 
 
0.57
 
 
 
 
 
Forfeited
 
 
(1,500
)
 
 
0.83
 
 
 
 
 
Outstanding at March 31, 2018
 
 
2,167,003
 
 
$
2.24
 
 
 
5.49
 
Exercisable at March 31, 2018
 
 
1,272,677
 
 
$
2.72
 
 
 
3.90
 
Vested and Expected to Vest at March 31, 2018
 
 
2,167,003
 
 
$
2.24
 
 
 
5.49
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
For the three months ended March 31, 2019 and 2018, 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:
 
 
 
2019
 
 
2018
 
Risk-Free Interest Rate
 
 
1.82
%
 
 
 
1.82
%
 
Expected Life
 
 
5.00
years
 
 
 
7.00
years
 
Expected Volatility
 
 
152
%
 
 
 
159
%
 
Expected Dividend Yield
 
 
0
%
 
 
 
0
%
 
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
The following is a summary of restricted stock activity for the three months ended March 31, 2019 and March 31, 2018:
 
 
 
Number of

Shares
 
 
Weighted- Average

Grant Date Fair Value
 
 
Weighted- Average

Remaining

Recognition Period
 
Nonvested Outstanding at December 31, 2018
 
 
1,822,132
 
 
$
0.59
 
 
 
 
 
Released/Vested
 
 
(7,957
)
 
 
1.52
 
 
 
 
 
Nonvested Outstanding at March 31, 2019
 
 
1,814,175
 
 
$
0.59
 
 
 
2.01
 
Nonvested Outstanding at December 31, 2017
 
 
103,000
 
 
 
1.52
 
 
 
 
 
     Released/Vested
 
 
(37,190
)
 
 
1.52
 
 
 
 
 
Nonvested Outstanding at March 31, 2018
 
 
65,810
 
 
$
1.52
 
 
 
1.85
 
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 Condensed Consolidated Statements of Operations and as follows: 
 
 
 
Three Months Ended

March 31,
 
 
 
2019
 
 
2018
 
Research and Development
 
$
64,539
 
 
$
57,078
 
General and Administrative
 
 
168,367
 
 
 
88,469
 
Total Stock-Based Compensation Expense
 
$
232,906
 
 
$
145,547