Note 2 - Property and Equipment (Tables)
 9 Months Ended
Sep. 30, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
   

September 30,

2013

   

January 31,

2013

 
                 

Machinery and equipment

  $ 1,467,346     $ 2,424,874  

Furniture and fixtures

    143,240       646,643  

Software

    413,833       1,828,705  

Leasehold improvements

    275,285       269,087  
      2,299,704       5,169,309  

Less accumulated depreciation and amortization

    350,907       4,206,240  

Property and equipment, net

  $ 1,948,797     $ 963,069