Note 15 - Shareholders' Equity and Regulatory Matters - (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 13, 2018
Common Stock, Dividends, Per Share, Cash Paid	$ 0.38	$ 0.30
Stock Repurchase Program, Authorized Amount				$ 15,000
Stock Repurchased and Retired During Period, Value	$ 2,553	$ 0	$ 33

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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