|
Warrants (Tables)
|
12 Months Ended |
|
Dec. 31, 2014
|
| Warrants [Abstract] |
|
| Summary Of Changes In Warrants Outstanding During The Period |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2014
|
2013
|
|
|
Number of warrants
|
Weighted average exercise price
|
Number of warrants
|
Weighted average exercise price
|
|
Balance, January 1
|
24,968,868
|
$
|
0.86
|
21,656,142
|
$
|
0.89
|
|
Issued during the period
|
4,761,905
|
$
|
1.28
|
8,421,001
|
$
|
0.59
|
|
Exercised during the period
|
(12,058,871)
|
$
|
0.52
|
(4,681,497)
|
$
|
0.47
|
|
Expired during the period
|
(4,466,031)
|
$
|
1.59
|
(426,778)
|
$
|
1.67
|
|
|
|
|
|
|
|
|
|
Balance, December 31
|
13,205,871
|
$
|
1.07
|
24,968,868
|
$
|
0.86
|
|
| Schedule Of Fair Value Of Warrants Issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair Value as of:
|
|
Warrant Issuance:
|
|
December 31, 2014
|
December 31, 2013
|
|
June 5, 2009 financing:
|
|
|
|
|
|
|
Series III warrants
|
|
$
|
-
|
$
|
11
|
|
Warrants to placement agent
|
|
|
-
|
|
1
|
|
October 23, 2009 financing:
|
|
|
|
|
|
|
Warrants to institutional investors
|
|
|
-
|
|
19,689
|
|
June 30, 2010 financing:
|
|
|
|
|
|
|
Warrants to institutional investors
|
|
|
-
|
|
10
|
|
March 31, 2011 financing:
|
|
|
|
|
|
|
Warrants to institutional investors
|
|
|
319,277
|
|
311,360
|
|
December 4, 2012 financing:
|
|
|
|
|
|
|
Warrants to institutional investors
|
|
|
90,052
|
|
2,124,444
|
|
Warrants to placement agent
|
|
|
14,595
|
|
222,286
|
|
July 26, 2013 financing:
|
|
|
|
|
|
|
Warrants to institutional investors
|
|
|
788,314
|
|
1,148,390
|
|
Warrants to placement agent
|
|
|
30,594
|
|
83,808
|
|
October 16, 2013 financing:
|
|
|
|
|
|
|
Warrants to institutional investors
|
|
|
949,756
|
|
1,051,454
|
|
Warrants to placement agent
|
|
|
96,563
|
|
72,605
|
|
January 21, 2014 financing:
|
|
|
|
|
|
|
Warrants to institutional investors
|
|
|
1,479,200
|
|
-
|
|
Total:
|
|
$
|
3,768,351
|
$
|
5,034,058
|
|
| Summary Of Shares Indexed To The Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
Number of Shares indexed as of:
|
|
Warrant Issuance
|
|
December 31, 2014
|
December 31, 2013
|
|
June 5, 2009 financing:
|
|
|
|
|
Series III warrants
|
|
-
|
1,555,555
|
|
Warrants to placement agent
|
|
-
|
132,143
|
|
October 23, 2009 financing:
|
|
|
|
|
Warrants to institutional investors
|
|
-
|
1,228,333
|
|
June 30, 2010 financing
|
|
|
|
|
Warrants to institutional investors
|
|
-
|
2,000,000
|
|
March 31, 2011 financing:
|
|
|
|
|
Warrants to institutional investors
|
|
3,333,333
|
3,333,333
|
|
December 4, 2012 financing:
|
|
|
|
|
Warrants to institutional investors
|
|
221,600
|
7,418,503
|
|
Warrants to placement agent
|
|
40,000
|
880,000
|
|
July 26, 2013 financing:
|
|
|
|
|
Warrants to institutional investors
|
|
2,000,000
|
3,990,000
|
|
Warrants to placement agent
|
|
124,032
|
456,000
|
|
October 16, 2013 financing:
|
|
|
|
|
Warrants to institutional investors
|
|
2,317,309
|
3,567,309
|
|
Warrants to placement agent
|
|
407,692
|
407,692
|
|
January 21, 2014 financing:
|
|
|
|
|
Warrants to institutional investors
|
|
4,761,905
|
-
|
|
Total:
|
|
13,205,871
|
24,968,868
|
|
| Schedule Of Assumptions Used In Calculating Fair Value Of Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
June 5, 2009 financing:
|
|
December 31, 2014
|
December 31, 2013
|
|
Trading market prices
|
|
$
|
-
|
|
$
|
0.51
|
|
|
Estimated future volatility
|
|
|
-
|
|
|
109
|
%
|
|
Dividend
|
|
|
-
|
|
|
-
|
|
|
Estimated future risk-free rate
|
|
|
-
|
|
|
0.13
|
%
|
|
Equivalent volatility
|
|
|
-
|
|
|
43-45
|
%
|
|
Equivalent risk-free rate
|
|
|
-
|
|
|
0.05-0.06
|
%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
October 23, 2009 financing:
|
|
December 31, 2014
|
December 31, 2013
|
|
Trading market prices
|
|
$
|
-
|
|
$
|
0.51
|
|
|
Estimated future volatility
|
|
|
-
|
|
|
109
|
%
|
|
Dividend
|
|
|
-
|
|
|
-
|
|
|
Estimated future risk-free rate
|
|
|
-
|
|
|
0.13
|
%
|
|
Equivalent volatility
|
|
|
-
|
|
|
57
|
%
|
|
Equivalent risk-free rate
|
|
|
-
|
|
|
0.07
|
%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
June 30, 2010 financing:
|
|
December 31, 2014
|
December 31, 2013
|
|
Trading market prices
|
|
$
|
-
|
|
$
|
0.51
|
|
|
Estimated future volatility
|
|
|
-
|
|
|
109
|
%
|
|
Dividend
|
|
|
-
|
|
|
-
|
|
|
Estimated future risk-free rate
|
|
|
-
|
|
|
0.13
|
%
|
|
Equivalent volatility
|
|
|
-
|
|
|
49
|
%
|
|
Equivalent risk-free rate
|
|
|
-
|
|
|
0.06
|
%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
March 31, 2011 financing:
|
|
December 31, 2014
|
December 31, 2013
|
|
Trading market prices
|
|
$
|
0.70
|
|
$
|
0.51
|
|
|
Estimated future volatility
|
|
|
108
|
%
|
|
109
|
%
|
|
Dividend
|
|
|
-
|
|
|
-
|
|
|
Estimated future risk-free rate
|
|
|
0.91
|
%
|
|
1.58
|
%
|
|
Equivalent volatility
|
|
|
67
|
%
|
|
71
|
%
|
|
Equivalent risk-free rate
|
|
|
0.22
|
%
|
|
0.27
|
%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 4, 2012 financing:
|
|
December 31, 2014
|
December 31, 2013
|
|
Trading market prices
|
|
$
|
0.70
|
|
$
|
0.51
|
|
|
Estimated future volatility
|
|
|
108
|
%
|
|
109
|
%
|
|
Dividend
|
|
|
-
|
|
|
-
|
|
|
Estimated future risk-free rate
|
|
|
0.74-1.90
|
%
|
|
1.58-2.72
|
%
|
|
Equivalent volatility
|
|
|
65-71
|
%
|
|
69-73
|
%
|
|
Equivalent risk-free rate
|
|
|
0.18-0.43
|
%
|
|
0.22-0.40
|
%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
July 26, 2013 financing:
|
|
December 31, 2014
|
December 31, 2013
|
|
Trading market prices
|
|
$
|
0.70
|
|
|
0.51
|
|
|
Dividend
|
|
|
-
|
|
|
-
|
|
|
Equivalent volatility
|
|
|
65-74
|
%
|
|
69-77
|
%
|
|
Equivalent risk-free rate
|
|
|
0.18-0.55
|
%
|
|
0.22-0.62
|
%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
October 16, 2013 financing:
|
|
December 31, 2014
|
December 31, 2013
|
|
Trading market prices
|
|
$
|
0.70
|
|
|
0.51
|
|
|
Dividend
|
|
|
-
|
|
|
-
|
|
|
Equivalent volatility
|
|
|
65-75
|
%
|
|
69-76
|
%
|
|
Equivalent risk-free rate
|
|
|
0.18-0.59
|
%
|
|
0.20-0.52
|
%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
January 21, 2014 financing:
|
|
December 31, 2014
|
December 31, 2013
|
|
Trading market prices
|
|
$
|
0.70
|
|
|
-
|
|
|
Dividend
|
|
|
-
|
|
|
-
|
|
|
Equivalent volatility
|
|
|
78
|
%
|
|
-
|
|
|
Equivalent risk-free rate
|
|
|
0.63
|
%
|
|
-
|
|
|
| Schedule Of Unrealized Gain/(Loss) On Fair Value Of Warrants |
Changes in the fair value of the warrant liabilities, carried at fair value, as reported as “unrealized loss on fair value of warrants” in the statement of operations:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Year Ended
December 31, 2014
|
Year Ended
December 31, 2013
|
|
Exercised and Expired Warrants
|
$
|
-
|
$
|
144
|
|
June 5, 2009 financing:
|
|
|
|
|
|
Series III warrants
|
|
11
|
|
35,300
|
|
Warrants to placement agent
|
|
1
|
|
3,488
|
|
October 23, 2009 financing:
|
|
|
|
|
|
Warrants to institutional investors
|
|
(277,791)
|
|
53,765
|
|
June 30, 2010 financing:
|
|
|
|
|
|
Warrants to institutional investors
|
|
10
|
|
12,190
|
|
March 31, 2011 financing:
|
|
|
|
|
|
Warrants to institutional investors
|
|
(7,917)
|
|
(5,027)
|
|
December 4, 2012 financing:
|
|
|
|
|
|
Warrants to institutional investors
|
|
(4,120,103)
|
|
(1,598,195)
|
|
Warrants to placement agent
|
|
(514,881)
|
|
(75,062)
|
|
July 26, 2013 financing:
|
|
|
|
|
|
Warrants to institutional investors
|
|
(1,272,731)
|
|
147,562
|
|
Warrants to placement agent
|
|
(234,877)
|
|
26,681
|
|
October 16, 2013 financing:
|
|
|
|
|
|
Warrants to institutional investors
|
|
(940,100)
|
|
18,739
|
|
Warrants to placement agent
|
|
(23,956)
|
|
14,761
|
|
January 21, 2014 financing:
|
|
|
|
|
|
Warrants to institutional investors
|
|
2,212,227
|
|
-
|
|
Total:
|
$
|
(5,180,107)
|
$
|
(1,365,654)
|
|