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Note 9 - Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2012
Operating Leases of Lessee Disclosure [Table Text Block]
   
Amount
 
   
(in thousands)
 
For the year ended December 31:
     
2012 (remaining six months)
  $ 357  
2013
    467  
2014
    431  
2015
    431  
2016
    425  
    $ 2,111  
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]
For the year ended December 31:
     
2012 (remaining six months)
  $ 258  
2013
    489  
2014
    458  
2015
    458  
2016
    51  
Total minimum lease payments
    1,714  
Less amount representing interest
    (119 )
         
Present value of net minimum lease payments
    1,595  
Less current portion
    (405 )
         
Capital lease obligations, net of current portion
  $ 1,190