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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2012
Summary of Significant Accounting Policies [Abstract]  
Intangible Assets and Goodwill
The changes in the carrying amounts of other indefinite and finite-life intangible assets and goodwill for the years ended December 31, 2012 and 2011 are as follows:


 
December 31, 2012
 
Other intangibles, net:
 
 
 
Beginning balance
 
$
192,000
 
Amortization
 
 
(192,000
)
Ending balance
 
 
—
 
 
 
 
 
Goodwill, net:
 
 
 
 
Beginning balance
 
 
3,922,000
 
Increase (decrease)
 
 
—
 
Ending balance
 
 
3,922,000
 
 
 
 
 
Total goodwill and other intangibles, net
 
$
3,922,000
 
 
 
 
 
Cumulative amortization of other intangible assets
 
$
2,216,000
 


 
December 31, 2011
 
Other intangibles, net:
 
 
 
Beginning balance
 
$
413,000
 
Amortization
 
 
(221,000
)
Ending balance
 
 
192,000
 
 
 
 
 
Goodwill, net:
 
 
 
 
Beginning balance
 
 
3,922,000
 
Increase (decrease)
 
 
—
 
Ending balance
 
 
3,922,000
 
 
 
 
 
Total goodwill and other intangibles, net
 
$
4,114,000
 
 
 
 
 
Cumulative amortization of other intangible assets
 
$
2,024,000
 
Estimated Fair Value of Warrants
All future changes in the fair value of the warrants are recognized currently in earnings until such time as the warrants are exercised or expire in August 2013. These warrants are not traded in an active securities market, and as such, we estimated the fair value of these warrants using an option pricing model with the following assumptions:

As of
December 31, 2012
As of
December 31, 2011
Expected term
0.61 years
1.61 years
Common stock market price
$
2.80
$
2.20
Risk-free interest rate
0.11
%
0.19
%
Expected volatility
73.88
%
69.98
%
Resulting fair value (per warrant)
$
0.20
$
0.32