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Note 2 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Allowance for Credit Losses on Financing Receivables [Table Text Block]
    December 31,
    2015   2014   2013
Balance, beginning of the year   $ 147     $ 593     $ 337  
Amounts provided     38       -       238  
Amounts written off     (3 )     (377 )     -  
Translation adjustments     (15 )     (69 )     18  
Balance, end of the year   $ 167     $ 147     $ 593