Note 12 - Income Taxes - Income Tax Reconciliation (Details) - USD ($)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Expected income taxes	$ 811,571	$ 651,312
State taxes, net of federal tax benefit	61,911	95,017
Tax exempt interest	(157,882)	(178,803)
Income taxed at lower rates	(23,188)	(18,609)
Revaluation of deferred taxes, Tax Cuts and Jobs Act of 2017	809,403
Other	1,934	50,877
	$ 1,503,749	$ 599,794

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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