Stock Plans, Share-Based Payments and Warrants (Tables)
 12 Months Ended
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule Of Fair Value Assumptions
The fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model with the below assumptions related to risk-free interest rates, expected dividend yield, expected lives and expected stock price volatility.
 
 
 
Option Pricing Assumptions
 
 
Grant Year
 
2013
 
 
2012
 
 
Stock Price Volatility
 
 
127.46-135.98
%
 
 
123.48 –128.54
%
 
Risk-Free Interest Rates
 
 
1.09-1.75
%
 
 
.093-1.32
%
 
Expected Life (in years)
 
 
5.00-6.25
 
 
 
5.75-62.5
 
 
Expected Dividend Yield
 
 
0
%
 
 
0
%
 
Summary Of Information About Stock Options Outstanding And Exercisable
The following table summarizes information about stock options outstanding and exercisable at December 31, 2013:
 
 
 
Options Outstanding
 
Options Exercisable
 
Range of Exercise
Price
 
Number
Outstanding as
of December
31, 2013
 
Weighted
Average
Remaining
Contractual
Life in
Years
 
Weighted
Average
Exercise
Price
 
Number
Exercisable as
of
December 31,
2013
 
Weighted
Average
Exercise Price
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
$0.41 - $2.60
 
 
2,374,514
 
 
8.16
 
$
0.93
 
 
1,349,579
 
$
0.83
 
$15.00 - $29.80
 
 
27,909
 
 
4.58
 
$
17.82
 
 
27,909
 
$
17.82
 
$34.20-$96.00
 
 
7,711
 
 
1.38
 
$
51.49
 
 
7,711
 
$
51.49
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total Outstanding
 
 
2,410,134
 
 
 
 
$
1.28
 
 
1,385,199
 
$
1.46
 
Summary Of Option Activity
The following table summarizes the option activity for the year ended December 31, 2013:
 
 
 
Shares
 
Weighted
Average
Exercise
Price
 
Outstanding at December 31, 2012
 
 
2,294,714
 
$
 
2.14
 
Options granted
 
 
237,315
 
 
 
0.64
 
Options exercised
 
 
-
 
 
 
-
 
Options forfeited or expired
 
 
(121,895)
 
 
 
3.27
 
Outstanding at December 31, 2013
 
 
2,410,134
 
$
 
1.28
 
Exercisable at December 31, 2013
 
 
1,385,199
 
$
 
1.46
 
Vested and expected to vest at December 31, 2013
 
 
2,350,688
 
$
 
1.29
 
Summary Of Restricted Stock Activity
The following table summarizes restricted stock activity for the year end December 31, 2013:
 
 
 
Shares
 
Weighted
Average
Grant Date
Fair Value
 
Nonvested at December 31, 2012
 
-
 
$
-
 
Granted
 
398,227
 
 
0.73
 
Vested
 
(264,770)
 
 
0.71
 
Forfeited
 
(58,007)
 
 
0.88
 
Nonvested at December 31, 2013
 
75,450
 
$
0.66
 
Summary Of Terms Of Outstanding Warrants
The following table summarizes certain terms of all of the Company’s outstanding warrants at December 31, 2013 and 2012: 
 
 
Total Outstanding Warrants at December 31, 2013
Title of Warrant
 
Date Issued
 
Expiry Date
 
Exercise Price
 
Total Common
Shares Issuable
 
 
 
 
 
 
 
 
 
 
2013
 
2012
 
Class D Warrants - Lambda
 
11/14/2007
 
3/10/2017
 
$
0.40
 
 
8,806,575
 
 
8,806,575
 
July 2009 Warrants
 
7/24/2009
 
7/24/2014
 
$
22.40
 
 
33,629
 
 
33,629
 
Shareholder Rights Offering Warrants
 
3/10/2011
 
3/10/2016
 
$
0.40
 
 
2,264,817
 
 
3,057,190
 
March 2011 Lambda Warrants
 
3/10/2011
 
3/10/2017
 
$
0.40
 
 
2,782,577
 
 
2,782,577
 
 
 
 
 
 
 
 
 
 
 
13,887,598
 
 
14,679,971
 
Class D Warrants [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary Of Terms Of Outstanding Warrants
The following table summarizes the Class D outstanding warrants at December 31, 2013 and 2012:
 
 
 
Lambda Investors
 
Other Investors
 
Total Shares to be issued
 
As of December 31, 2011
 
 
8,806,575
 
 
447,197
 
 
9,253,772
 
Exercised in 2012
 
 
-
 
 
(352,034)
 
 
(352,034)
 
Expired in 2012
 
 
-
 
 
(95,163)
 
 
(95,163)
 
As of December 31, 2012
 
 
8,806,575
 
 
-
 
 
8,806,575
 
Exercised in 2013
 
 
-
 
 
-
 
 
-
 
Expired in 2013
 
 
-
 
 
-
 
 
-
 
As of December 31, 2013
 
 
8,806,575
 
 
-
 
 
8,806,575