|
Stock-Based Compensation (Tables)
|
12 Months Ended |
|
Dec. 31, 2014
|
| Stock-Based Compensation [Abstract] |
|
| Summary Of Stock Compensation Expense |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Year Ended December 31,
|
|
|
|
2014
|
2013
|
|
Statement of operations line item:
|
|
|
|
|
|
General and administrative
|
$
|
457,128
|
$
|
503,076
|
|
Research and development
|
|
151,667
|
|
62,352
|
|
|
|
|
|
|
|
Total
|
$
|
608,795
|
$
|
565,428
|
|
| Schedule Of Assumptions Made In Calculating The Fair Value Of Options |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Year Ended December 31,
|
|
|
2014
|
2013
|
|
Black-Scholes weighted average assumptions
|
|
|
|
|
|
Expected dividend yield
|
0
|
%
|
0
|
%
|
|
Expected volatility
|
92-96
|
%
|
94-96
|
%
|
|
Risk free interest rate
|
1.49-1.75
|
%
|
0.75-1.75
|
%
|
|
Expected term (in years)
|
5 years
|
|
5 years
|
|
|
| Summary Of Employee And Non-Employee Transactions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2014
|
|
|
2013
|
|
|
Number of Options
|
Weighted Average Exercise Price
|
Number of Options
|
Weighted Average Exercise Price
|
|
Outstanding at
|
|
|
|
|
|
|
|
January 1
|
9,356,795
|
$
|
0.92
|
7,741,795
|
$
|
1.03
|
|
Granted
|
2,528,499
|
|
0.96
|
2,450,000
|
|
0.39
|
|
Exercised
|
(448,693)
|
|
0.80
|
(375,000)
|
|
0.24
|
|
Expired
|
(35,795)
|
|
0.24
|
(375,000)
|
|
0.52
|
|
Cancelled
|
-
|
|
-
|
(85,000)
|
|
0.80
|
|
|
|
|
|
|
|
|
|
Outstanding at December 31
|
11,400,806
|
$
|
0.93
|
9,356,795
|
$
|
0.92
|
|
| Summary Of Stock Options Outstanding |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Number of Options
|
Weighted Average Exercise Price
|
Weighted Average Remaining Contractual Term
|
Aggregate Intrinsic Value
|
|
Outstanding at
|
|
|
|
|
|
|
|
December 31, 2014
|
11,400,806
|
$
|
0.93
|
5.2 years
|
$
|
842,300
|
|
|
|
|
|
|
|
|
|
Exercisable at
|
|
|
|
|
|
|
|
December 31, 2014
|
8,167,307
|
$
|
0.97
|
3.6 years
|
$
|
613,550
|
|
|
|
|
|
|
|
|
|
Outstanding at
|
|
|
|
|
|
|
|
December 31, 2013
|
9,356,795
|
$
|
0.92
|
4.8 years
|
$
|
350,865
|
|
|
|
|
|
|
|
|
|
Exercisable at
|
|
|
|
|
|
|
|
December 31, 2013
|
7,956,795
|
$
|
0.99
|
4.0 years
|
$
|
199,795
|
|
| Summary Of Unvested Shares |
|
|
|
|
|
|
|
|
|
|
|
|
2014
|
|
|
Number of Options
|
Weighted Average Fair Value at Grant Date
|
|
Unvested at January 1, 2014
|
1,400,000
|
$
|
0.34
|
|
Granted
|
2,528,499
|
$
|
0.69
|
|
Vested
|
(695,000)
|
$
|
0.41
|
|
Cancelled
|
-
|
$
|
-
|
|
|
|
|
|
|
Unvested at December 31, 2014
|
3,233,499
|
$
|
0.60
|
|