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Note 5 - Inventories
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]

5.     InventoriesThe value of inventories at March 31, 2014 and December 31, 2013 is as follows:


(in thousands)

March 31, 2014

(unaudited)

December 31, 2013

(audited)

Raw materials

  $ 941     $ 940  

Finished goods

    147       166  

Total inventories

  $ 1,088     $ 1,106