|
Stock-Based Compensation (Tables)
|
6 Months Ended |
|
Jun. 30, 2014
|
| Stock-Based Compensation [Abstract] |
|
| Summary Of Stock Compensation Expense |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Three Months Ended June 30,
|
|
|
Six Months Ended June 30,
|
|
|
|
2014
|
2013
|
|
|
2014
|
2013
|
|
Statement of operations line item:
|
|
|
|
|
|
|
|
|
|
|
General and administrative:
|
|
|
|
|
|
|
|
|
|
|
Payroll
|
$
|
97,605
|
$
|
40,535
|
|
$
|
178,516
|
$
|
390,914
|
|
Consulting and other professional fees
|
|
-
|
|
-
|
|
|
-
|
|
3,893
|
|
Research and development:
|
|
|
|
|
|
|
|
|
|
|
Payroll
|
|
33,268
|
|
13,836
|
|
|
61,799
|
|
29,568
|
|
Consulting and other professional fees
|
|
1,645
|
|
-
|
|
|
20,553
|
|
1,947
|
|
|
|
|
|
|
|
|
|
|
|
|
Total
|
$
|
132,518
|
$
|
54,371
|
|
$
|
260,868
|
$
|
426,322
|
|
| Schedule Of Assumptions Made In Calculating The Fair Value Of Options |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Six Months Ended June 30,
|
|
|
2014
|
2013
|
|
Black-Scholes weighted average assumptions
|
|
|
|
|
|
Expected dividend yield
|
0
|
%
|
0
|
%
|
|
Expected volatility
|
92-97
|
%
|
94-96
|
%
|
|
Risk free interest rate
|
1.5-1.7
|
%
|
0.75-1.13
|
%
|
|
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
|
1,398,499
|
|
1.07
|
2,300,000
|
|
0.37
|
|
Exercised
|
(448,693)
|
|
0.80
|
-
|
|
-
|
|
Expired
|
-
|
|
-
|
-
|
|
-
|
|
Cancelled
|
-
|
|
-
|
-
|
|
-
|
|
|
|
|
|
|
|
|
|
Outstanding at June 30
|
10,306,601
|
$
|
0.94
|
10,041,795
|
$
|
0.88
|
|
| Summary Of Stock Options Outstanding |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Number of Options
|
Weighted Average Exercise Price
|
Weighted Average Remaining Contractual Term
|
Aggregate Intrinsic Value
|
|
Outstanding at
|
|
|
|
|
|
|
|
June 30, 2014
|
10,306,601
|
$
|
0.94
|
5.2 years
|
$
|
1,494,382
|
|
|
|
|
|
|
|
|
|
Exercisable at
|
|
|
|
|
|
|
|
June 30, 2014
|
8,118,102
|
$
|
0.97
|
4.0 years
|
$
|
1,133,182
|
|
|
|
|
|
|
|
|
|
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
|
1,398,499
|
$
|
0.77
|
|
Vested
|
(610,000)
|
$
|
0.38
|
|
Cancelled
|
-
|
$
|
-
|
|
|
|
|
|
|
Unvested at June 30, 2014
|
2,188,499
|
$
|
0.60
|
|