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Note 13 - Leases (Details Textual)
$ in Thousands
Mar. 31, 2019
USD ($)
Jan. 01, 2019
USD ($)
Number of Operating Leases, Lessee 7  
Number of Operating Leases in Bank Branch Locations, Lessee 4  
Number of Operating Leases in Administrative and Operational Spaces, Lessee 2  
Number of Operating Leases in Equipment Leases, Lessee 1  
Operating Lease, Right-of-Use Asset $ 3,305  
Operating Lease, Liability, Total $ 3,361  
Accounting Standards Update 2016-02 [Member]    
Operating Lease, Right-of-Use Asset   $ 3,400
Operating Lease, Liability, Total   $ 3,400