v2.4.0.8
Note 9 - Fair Value Measurements (Details) - Fair Value Measurements (USD $)
In Thousands, unless otherwise specified
Apr. 30, 2014
Jan. 31, 2014
Apr. 30, 2013
Jan. 31, 2013
Note 9 - Fair Value Measurements (Details) - Fair Value Measurements [Line Items]        
Derivative Liabilties $ 3,525 $ 2,520 $ 3,857 $ 2,466
Fair Value, Inputs, Level 3 [Member]
       
Note 9 - Fair Value Measurements (Details) - Fair Value Measurements [Line Items]        
Derivative Liabilties $ 3,525