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Note 5 - Other Income
12 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
Other Income and Other Expense Disclosure [Text Block]
5.
Other income, net
 
    2018     2017  
             
(Gain) Loss on investments   $
(168
)   $
309
 
Equity earnings from non-consolidated investments    
(1,321
)    
(923
)
Other    
208
     
114
 
    $
(1,281
)   $
(500
)