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Note 9 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Deferred Tax Assets |  |
Allowance for Loan Losses | $ 1,576,577 | $ 3,033,920
Other Real Estate | 304,813 | 688,162
Deferred Compensation | 161,000 | 280,704
Investments | 210,000 | 340,000
Goodwill | 76,058 | 167,666
Other | 237,591 | 379,304
| 2,566,039 | 4,889,756
Deferred Tax Liabilities |  |
Premises and Equipment | (995,190) | (1,553,460)
Other | (2,585) | (4,185)
| (997,775) | (1,557,645)
Deferred Tax Assets (Liabilities) on Unrealized Securities Gains (Losses) | 1,725,708 | 2,587,163
Net Deferred Tax Assets | $ 3,293,972 | $ 5,919,274

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