Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| 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 | $ 15,419,269 | $ 14,829,861 |