v2.4.0.8
Note 9 - Fair Value Measurements (Tables)
6 Months Ended
Jul. 31, 2014
Table Text Block Supplement [Abstract]  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
           

Quoted Prices

                 
           

in Active

   

Significant Other

   

Significant

 
   

July 31,

   

Markets for

   

Observable

   

Unobservable

 

Description

 

2014

   

(Level 1)

   

(Level 2)

   

(Level 3)

 

Derivative Liabilties

  $ 2,294     $ -     $ -     $ 2,294  
Fair Value Assumptions [Table Text Block]
   

July 31, 2014

 

Risk free interest rate

    2.0 %

Average expected life (in years)

 

5.99

 

Expected volatility

    124.3 %

Expected dividends

 

None

 
Change in Fair Value of Level 3 Financial Instruments [Table Text Block]
                   

Change in estimated

         
           

Change in

   

fair value recognized

         
   

February 1,

   

Derivative

   

in results of

   

July 31,

 

Description

 

2014

   

Liabilities

   

operations

   

2014

 
                                 

Broadwood warrants

  $ 2,426     $ -     $ (132 )   $ 2,294  

Elkhorn conversion features

    94       (94 )     -       -  
    $ 2,520     $ (94 )   $ (132 )   $ 2,294  
   

February 1,
2013

   

Recorded New Derivative
Liabilities

   

Change in estimated fair value recognized in results of operations

   

July 31,
2013

 
                                 

Derivative liabilities

  $ 2,466     $ 624     $ 717     $ 3,807