Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Percentage of Loan Portfolio Concentrated in Loans Secured by Real Estate.	86.00%
Discounted Percentage to Account for Selling and Marketing Costs	10.00%
Probability of Uncertain Tax Positions of Being Realized upon Settlement, Minimum	50.00%
Other Assets [Member]
Cash Surrender Value of Life Insurance	$ 21,357	$ 17,598