Note 10 - Subsequent Event (Details Textual) - USD ($)	Apr. 02, 2018	Mar. 31, 2018	Dec. 31, 2017
Assets, Total		$ 807,025,285	$ 794,459,520
Liabilities, Total		731,190,745	719,568,027
Stockholders' Equity Attributable to Parent, Ending Balance		$ 75,834,540	74,891,493
Hometown Bank, N.A. [Member]
Assets, Total			182,100,000
Liabilities, Total			176,100,000
Stockholders' Equity Attributable to Parent, Ending Balance			$ 6,000,000
Subsequent Event [Member] \| Hometown Merger [Member]
Business Acquisition, Share Price	$ 20
Business Combination, Consideration Transferred, Total	$ 4,600,000

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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