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Note 5 - Leases (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Lease, Cost [Table Text Block]
   
September 30, 2019
(Unaudited)
 
weighted average remaining lease term (years)
   
7.62
 
weighted average discount rates
   
3.80
%
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
The remainder of 2019
  $
705
 
2020
   
2,361
 
2021
   
1,566
 
2022
   
1,272
 
2023
   
1,192
 
2024 and thereafter
   
4,856
 
Total undiscounted cash flows
   
11,952
 
Less imputed interest
   
1,631
 
Present value of lease liabilities
  $
10,321