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Fair Value (Tables)
12 Months Ended
Dec. 31, 2012
Fair Value [Abstract]  
Financial Assets Measured At Fair Value On A Recurring Basis
    Level 1 Level 2 Level 3   Total
      ($ in thousands)      
 
Short-term investments $ 259 $ - $ - $ 259
Binomial Pricing Model Fair Value Assumption
Binomial method      
Model iterations   100.5  
Simulated median price $ 13.45  
Exercise price per share $ 11.74  
Expected volatility   12.03 %
Risk free interest rate   0.15 %
Yield rate   7.73 %
Financial Liabilities Measured At Fair Value On A Recurring Basis
$ in thousands) Level 1 Level 2   Level 3   Total
Derivative liability in connection with business acquisition $  - $  - $ 131 $ 131
Change In Fair Value Of Level 3 Derivative Liability
    ($ in thousands)  
 
Derivative liability balance December 31, 2011 $ 131  
Decrease in fair value of price protection instrument   (75 )
Derecognition of derivative liability   (56 )
Derivative liability balance December 31, 2012 $ -