Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Tables)

v3.3.0.814
STOCK-BASED COMPENSATION (Tables)
9 Months Ended
Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]
The following table summarizes amounts charged to expense for stock-based compensation related to employee and director stock option grants and recorded in connection with stock options granted to non-employee consultants:
 
 
 
Three Months Ended
 
Nine Months Ended
 
 
 
September 30,
 
September 30,
 
 
 
2015
 
2014
 
2015
 
2014
 
Employee and director stock option grants:
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and development
 
$
25,749
 
$
31,441
 
$
109,402
 
$
142,142
 
General and administrative
 
 
142,319
 
 
130,700
 
 
316,755
 
 
491,665
 
Restructuring
 
 
 
 
 
 
 
 
47,853
 
 
 
 
168,068
 
 
162,141
 
 
426,157
 
 
681,660
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Non-employee consultant stock option grants:
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and development
 
 
(3,052)
 
 
(15,582)
 
 
2,404
 
 
1,115
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total stock-based compensation
 
$
165,016
 
$
146,559
 
$
428,561
 
$
682,775
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The following table summarizes weighted-average values and assumptions used for options granted to employees, directors and consultants in the periods indicated:
 
 
 
Nine Months
Ended
 
 
Nine Months
Ended
 
 
 
September 30,
2015
 
 
September 30,
2014
 
Volatility
 
 
105-107
%
 
 
108
%
Risk-free interest rate
 
 
1.70-1.95
%
 
 
1.76
%
Expected life (years)
 
 
6.0
 
 
 
6.0
 
Dividend
 
 
0
%
 
 
0
%
Weighted-average exercise price
 
$
2.65
 
 
$
7.40
 
Weighted-average grant-date fair value
 
$
2.17
 
 
$
6.20
 
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of stock option activity is as follows:
 
 
 
 
 
 
 
Weighted
 
 
 
 
 
Number of
 
 
 
Average
 
 
 
 
 
Shares Issuable
 
 
 
Remaining
 
 
 
 
 
Upon Exercise
 
Weighted
 
Contracted
 
Aggregate
 
 
 
of Outstanding
 
Average
 
Term in
 
Intrinsic
 
 
 
Options
 
Exercise Price
 
Years
 
Value
 
Outstanding at December 31, 2014
 
 
719,466
 
$
15.59
 
 
 
 
 
 
 
Granted
 
 
510,200
 
$
2.65
 
 
 
 
 
 
 
Exercised
 
 
8,333
 
$
2.74
 
 
 
 
 
 
 
Canceled
 
 
149,177
 
$
22.68
 
 
 
 
 
 
 
Forfeited
 
 
283,773
 
$
8.22
 
 
 
 
 
 
 
Outstanding at September 30, 2015
 
 
788,383
 
$
8.67
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Vested, September  30, 2015
 
 
253,556
 
$
18.04
 
 
5.61
 
$
 
Unvested, September  30, 2015
 
 
534,827
 
$
3.04
 
 
9.56
 
$
 
Exercisable at September  30, 2015
 
 
253,556
 
$
18.04
 
 
5.61
 
$