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Note 22 - Stock Compensation Plans (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
   
2019
 
   
Shares
   
Weighted Average Grant Date Fair Value
 
Unvested, January 1, 2019
   
7,103
    $
17.93
 
Granted
   
8,692
     
19.56
 
Vested
   
(5,402
)    
17.99
 
Forfeited
   
     
 
Unvested, December 31, 2019
   
10,393
    $
19.26