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Note 4 - Credit Facilities (Tables)
 3 Months Ended
Mar. 31, 2016
Notes Tables  
Schedule of Debt [Table Text Block]
 
 
Interest Rate as of
March 31, 2016
 
 
2016
 
 
2017
 
 
2018
 
Mizuho Bank
     0.1%     $ 19     $ 25     $ 5  
Sterling National Bank
     3.0%  
 
 
–
 
     4,004  
 
 
–
 
Oxford Funding Pty Ltd.
     6.5%       278  
 
 
–
 
 
 
–
 
Total
           $ 297     $ 4,029     $ 5  
Credit And Debt Facilities Unused Availability [Table Text Block]
   
March 31, 2016
    
December 31, 201
5
  
Unused Availability:
                
United States
   $ 1,897     $ 1,635  
Australia
     642       640  
Total Unused Availability
   $ 2,539     $ 2,275