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Note 10 - Regulatory Matters (Details Textual) - USD ($)
$ in Thousands
Jan. 01, 2019
Jan. 01, 2016
Jun. 30, 2017
Percentage of Capital Implementation   0.625%  
Capital Conservation Buffer     1.25%
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval     $ 3,612
Scenario, Forecast [Member]      
Percentage of Capital Implementation 2.50%