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Note 11. Accumulated Other Comprehensive Income (Tables)
3 Months Ended
Mar. 31, 2017
Equity [Abstract]  
Component of accumulated other comprehensive income
   Three months ended March 31, 2017  Three months ended March 31, 2016
    Foreign Currency Translation Adjustments    

Investment Gain (Loss)
    Accumulated Other Comprehensive Income (Loss)    Foreign Currency Translation Adjustments    

Investment Gain (Loss)
    Accumulated
Other
Comprehensive Income (Loss)
 
Beginning Balance  $(3,447)  $(137)  $(3,584)  $(2,992)  $(687)  $(3,679)
Other comprehensive income (loss) before reclassifications   185    124    309    331    (256)   75 
Ending Balance  $(3,262)  $(13)  $(3,275)  $(2,661)  $(943)  $(3,604)