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Stock-Based Compensation (Tables)
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12 Months Ended |
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Dec. 31, 2012
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| Stock-Based Compensation [Abstract] |
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| Summary Of Stock Compensation Expense |
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Cumulative from
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Year Ended December 31,
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March 19, 2001 (Inception) to
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2012
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2011
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December 31, 2012
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Statement of operations line item:
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General and administrative:
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Payroll
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$
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126,029
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$
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501,884
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$
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2,621,429
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Consulting and other professional fees
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23,932
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26,566
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810,455
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Research and development:
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Payroll
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76,008
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95,753
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1,048,057
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Consulting and other professional fees
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5,018
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14,404
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1,328,675
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Total
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$
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230,987
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$
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638,607
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$
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5,808,616
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| Schedule Of Assumptions Made In Calculating The Fair Value Of Options |
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Year Ended December 31,
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2012
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2011
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Black-Scholes weighted average assumptions
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Expected dividend yield
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0
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%
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0
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%
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Expected volatility
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98-101
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%
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96-101
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%
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Risk free interest rate
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0.62-0.89
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%
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0.11-2.29
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%
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Expected term (in years)
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5 years
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5 years
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| Summary Of Employee And Non-Employee Transactions |
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2012
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2011
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Number of Options
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Weighted Average Exercise Price
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Number of Options
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Weighted Average Exercise Price
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Outstanding at
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January 1
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7,646,795
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$
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1.05
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8,076,795
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$
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1.01
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Granted
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245,000
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0.41
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450,000
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1.28
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Exercised
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-
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-
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(183,000)
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0.32
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Cancelled
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(150,000)
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1.15
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(697,000)
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0.91
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Outstanding at December 31
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7,741,795
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$
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1.03
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7,646,795
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$
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1.05
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| Summary Of Stock Options Outstanding |
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Number of Options
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Weighted Average Exercise Price
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Weighted Average Remaining Contractual Term
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Aggregate Intrinsic Value
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Outstanding at
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December 31, 2012
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7,741,795
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$
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1.03
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3.9 years
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$
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41,706
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Exercisable at
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December 31, 2012
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7,176,795
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$
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1.04
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3.5 years
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$
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41,706
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Outstanding at
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December 31, 2011
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7,646,795
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$
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1.05
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4.8 years
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$
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83,611
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Exercisable at
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December 31, 2011
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6,911,795
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$
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1.02
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4.4 years
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$
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83,611
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| Summary Of Unvested Shares |
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2012
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Number of Options
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Weighted Average Fair Value at Grant Date
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Unvested at January 1, 2012
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735,000
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$
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0.92
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Granted
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245,000
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$
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0.30
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Vested
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(304,000)
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$
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0.92
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Cancelled
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(111,000)
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$
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0.89
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Unvested at December 31, 2012
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565,000
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$
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0.66
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