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Note 17 - Earnings Per Share ("EPS") (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
    Years Ended December 31,
    2019   2018   2017
Shares used in the calculation of basic earnings per share    
14,121
     
14,442
     
14,575
 
Effect of dilutive securities:                        
Stock options, SARs, RSAs and RSUs    
253
     
247
     
493
 
Diluted shares used in the calculation of earnings per share    
14,374
     
14,689
     
15,068