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Derivative Liability (Tables)
12 Months Ended
Dec. 31, 2012
Derivative liability [Abstract]  
Additional information on warrants, issued for bridge financing
Issue
Date
Number of
warrants
issued
Exercise
price
Risk free
interest rate
Expected
life
Expected
volatility
Dividend
yield
Derivative
liability
value on
date of
issue
4/23/20125,349$ 0.051.78%3 years205.3%$ -
$
50
11/15/20123,294$ 0.051.58%3 years202.2%$ -
$
8
Key assumptions used to calculate fair value of warrant derivative liabilities

The Company uses a discounted Black-Scholes pricing model to calculate the fair value of its preferred share and warrant liabilities. Key assumptions used to apply these models are as follows:

December 31, 2012December 31, 2011
Expected term0.3 to 2.80 years0.5 to 2.90 years
Volatility205.3%204.7% - 315.2%
Risk-free interest rate1.780.06 - 0.36%
Dividend yield0%0%
Changes in the market value of the Level 3 derivative liability

Changes in the fair value of the level 3 derivative liability for the year ended December 31, 2012, are as follows:

Derivative Liability
Balance at January 1, 2011
$
281   
Additional liabilities recorded related to warrants issued for services55   
Additional liabilities recorded related to warrants issued for services3   
Gain on derivative liability(211)  
Balance at December 31, 2012
$
128   
Liabilities measured at fair value

Assets and liabilities measured at fair value as of December 31, 2012, are as follows:

Value at
December 31, 2012
Quoted prices
in active
markets
Significant other
observable
inputs
Significant
unobservable
inputs
(Level 1)(Level 2)(Level 3)
Derivative liability
$
128
$
-
$
-
$
128