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Note 6 - Supplemental Disclosures of Cash Flow Information - Supplemental Disclosures of Cash Flow Information (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Cash payments for:    
Interest $ 1,072 $ 1,400
Taxes (net of refunds received) 2,534 713
Noncash investing activities:    
Transfers from loans to real estate acquired through foreclosure $ 471 $ 582