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Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2011
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
During the years ended December 31, 2011 and 2010, the Company issued warrants for services as follows ($ in thousands, except share data):

 
 
Years Ended December 31,
  
 
2011
 
2010
Number of Common Stock Purchase Warrants Issued
 
670,000

 
627,000

Value of Common Stock Purchase Warrants Issued
 
$
495.1

 
$
772.2
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
The number of remaining shares authorized to be issued under the various equity plans are as follows:

 
 
U.S.
Equity Plan
 
Non-U.S. Plan
Shares Authorized for Issuance under 2003 Equity Plan
 
2,500,000

 
—

Shares Authorized for Issuance under 2009 Equity Plan
 
23,750,000

 
—

Shares Authorized for Issuance under Non-U.S. Plan
 
—

 
5,700,000

  Total Share Authorized for Issuance
 
26,250,000

 
5,700,000

Outstanding Options – U.S. Equity Plan
 
(15,043,505
)
 
  

Exercised Options
 
(97,500
)
 
—

Outstanding Options – Non-U.S. Plan
 
  

 
(2,100,000
)
Restricted stock or equity grants issued under Equity Plans
 
(3,398,573
)
 
(885,000
)
Total common shares remaining to be issued under the Equity Plans
 
7,710,422

 
2,715,000
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
During the years ended December 31, 2011 and 2010, the Company issued restricted stock for services as follows ($ in thousands, except share data):

 
 
Years Ended December 31,
  
 
2011
 
2010
Number of Restricted Stock Issued
 
3,467,451

 
338,599

Value of Restricted Stock Issued
 
$
3,580.6

 
$
569.5
Warrant Activity [Table Text Block]
Activity related to warrants outstanding for the years ended December 31, 2011 and 2010 was as follows:

 
 
Number of
Shares
 
Weighted
Average
Exercise Price
 
Weighted
Average
Remaining
Contractual
Term (years)
 
Aggregate
Intrinsic Value
Balance at December 31, 2009
 
19,838,802

 
3.00

 
  

 
  

Granted
 
5,792,896

 
1.99

 
  

 
  

Exercised
 
(2,025,000
)
 
1.46

 
  

 
  

Expired
 
(1,613,191
)
 
6.54

 
  

 
  

Canceled
 
(150,000
)
 
2.78

 
 
 
 
Balance at December 31, 2010
 
21,843,507

 
2.62

 


 
  

Granted
 
15,993,947

 
2.09

 
  

 
  

Exercised
 
—

 
—

 
  

 
  

Expired
 
(447,629
)
 
6.18

 
  

 
  

Canceled
 
—

 
—

 
  

 
  

Balance at December 31, 2011
 
37,389,825

 
2.35

 
3.87

 
$
—
Outstanding Warrants by Exercise Price Range [Table Text Block]
At December 31, 2011, the outstanding warrants by range of exercise prices were as follows:

 
 
Warrants Outstanding
 
Warrants Exercisable
Range of
Exercise Prices
 
Shares
Outstanding
 
Weighted
Average
Remaining
Contractual
Life (years)
 
Weighted
Average
Exercise Price
 
Shares
Exercisable
 
Weighted
Average
Remaining
Contractual
Life (years)
 
Weighted
Average
Exercise Price
$0.56 – $1.45
 
11,263,500

 
4.5

 
$
1.42

 
10,805,500

 
4.5

 
$
1.44

$1.46 – $2.10
 
7,933,635

 
4.0

 
1.75

 
7,933,635

 
4.0

 
1.75

$2.11 – $2.53
 
13,032,512

 
3.3

 
2.50

 
13,032,512

 
3.3

 
2.50

$2.54 – $5.99
 
2,929,928

 
4.5

 
3.73

 
2,929,928

 
4.5

 
3.73

$6.00 – $7.00
 
2,230,250

 
3.4

 
6.51

 
1,230,250

 
1.2

 
6.11

  
 
37,389,825

 
3.9

 
$
2.35

 
35,931,825

 
3.8

 
$
2.24
Warrants [Member]
  
Schedule of Assumptions Used [Table Text Block]
The range of assumptions made in calculating the fair values of warrants issued for services was as follows:

 
 
Years Ended December 31,
  
 
2011
 
2010
Expected term - minimum (in years)
 
3
 
3
Expected term - maximum (in years)
 
5
 
5
Expected volatility - minimum
 
80%
 
86%
Expected volatility - maximum
 
86%
 
124%
Expected dividend yield
 
—
 
—
Risk-free interest rate - minimum
 
0.78%
 
0.64%
Risk-free interest rate - maximum
 
2.19%
 
2.65%
Stock Options [Member]
  
Schedule of Assumptions Used [Table Text Block]
The range of assumptions made in calculating the fair values of options was as follows:
 
 
Years Ended December 31,
  
 
2011
 
2010
Expected term - minimum (in years)
 
3
 
2
Expected term - maximum (in years)
 
10
 
10
Expected volatility - minimum
 
79%
 
86%
Expected volatility - maximum
 
85%
 
122%
Expected dividend yield
 
—
 
—
Risk-free interest rate - minimum
 
0.4%
 
0.34%
Risk-free interest rate - maximum
 
3.45%
 
3.8%
US Equity Plan [Member]
  
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
At December 31, 2011, the outstanding options under the U.S. Equity Plan by range of exercise prices were as follows:
 
 
Options Outstanding
 
Options Exercisable
Range of
Exercise Prices
 
Shares Outstanding
 
Weighted Average Remaining Contractual Life (years)
 
Weighted Average Exercise Price
 
Shares Exercisable
 
Weighted Average Remaining Contractual Life (years)
 
Weighted Average Exercise Price
$0.52 – $0.71
 
1,123,000

 
7.7

 
0.67

 
170,002

 
7.2

 
$
0.69

$0.72 – $1.50
 
2,879,700

 
8.6

 
1.46

 
422,500

 
6.1

 
1.36

$1.51 – $1.80
 
6,629,000

 
7.9

 
1.71

 
4,826,252

 
7.8

 
1.71

$1.81 – $2.00
 
2,874,255

 
4.6

 
1.91

 
2,705,994

 
4.6

 
1.91

$2.01 – $15.00
 
1,537,550

 
7.0

 
2.29

 
1,430,883

 
6.9

 
2.30

  
 
15,043,505

 
7.3

 
$
1.68

 
9,555,631

 
6.7

 
$
1.82
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Activity related to stock options outstanding under the Non-U.S. Plan was as follows:
 
 
Number of
Shares
 
Weighted
Average
Exercise Price
 
Weighted
Average
Remaining
Contractual Term
 
Aggregate
Intrinsic Value
Balance at December 31, 2009
 
1,650,000

 
2.04

 
  

 
  

Granted
 
2,000,000

 
2.01

 
  

 
  

Exercised
 
—

 
—

 
  

 
  

Expired
 
—

 
—

 
  

 
  

Canceled
 
(550,000
)
 
2.04

 
 
 
 
Balance at December 31, 2010
 
3,100,000

 
2.02

 
  

 
  

Granted
 
650,000

 
1.74

 
  

 
  

Exercised
 
—

 
—

 
  

 
  

Expired
 
(366,666
)
 
2.04

 
  

 
  

Canceled
 
(1,283,334
)
 
2.00

 
  

 
  

Balance at December 31, 2011
 
2,100,000

 
$
1.95

 
8.22

 
$
—

Activity related to stock options outstanding under the U.S. Equity Plan was as follows:

 
 
Number of
Shares
 
Weighted
Average
Exercise Price
 
Weighted
Average
Remaining
Contractual
Term (years)
 
Aggregate
Intrinsic Value
Balance at December 31, 2009
 
8,340,574

 
1.87

 
  

 
  

Granted
 
1,955,000

 
1.85

 
  

 
  

Exercised
 
(90,000
)
 
1.56

 
  

 
  

Expired
 
—

 
—

 
  

 
  

Canceled
 
(273,360
)
 
1.86

 
 
 
 
Balance at December 31, 2010
 
9,932,214

 
1.87

 
  

 
  

Granted
 
8,047,600

 
1.48

 
  

 
  

Exercised
 
(5,000
)
 
1.42

 
  

 
  

Expired
 
(850,523
)
 
1.92

 
  

 
  

Canceled
 
(2,080,786
)
 
1.71

 
  

 
  

Balance at December 31, 2011
 
15,043,505

 
$
1.68

 
7.3

 
$
—
Non US Plan [Member]
  
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
At December 31, 2011, the outstanding options under the Non-U.S. Plan by range of exercise prices were as follows:

 
 
Options Outstanding
 
Options Exercisable
Range of
Exercise Prices
 
Shares Outstanding
 
Weighted Average Remaining Contractual Life (years)
 
Weighted Average Exercise Price
 
Shares Exercisable
 
Weighted Average Remaining Contractual Life (years)
 
Weighted Average Exercise Price
$1.42 – $1.70
 
700,000

 
8.7

 
$
1.62

 
200,000

 
8.7

 
$
1.65

$1.71 – $2.08
 
350,000

 
7.3

 
1.74

 
175,000

 
7.3

 
1.74

$2.09 – $2.22
 
650,000

 
8.1

 
2.16

 
250,000

 
8.2

 
2.16

$2.23 – $2.36
 
400,000

 
8.5

 
2.36

 
300,000

 
8.5

 
2.36

  
 
2,100,000

 
8.2

 
$
1.95

 
925,000

 
8.2

 
$
2.04