Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Percentage of Loan Portfolio Concentrated in Loans Secured by Real Estate.	87.00%
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	$ 15,569	$ 15,419