v2.4.0.8
Note 10 - Fair Value Measurements (Details) - Fair Value Measurements (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2013
Jan. 31, 2013
Oct. 31, 2012
Note 10 - Fair Value Measurements (Details) - Fair Value Measurements [Line Items]      
Derivative Liabilities $ 2,819 $ 2,466 $ 1,754
Fair Value, Inputs, Level 3 [Member]
     
Note 10 - Fair Value Measurements (Details) - Fair Value Measurements [Line Items]      
Derivative Liabilities $ 2,819