Note 12 - Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Federal:
Current	$ 437,095	$ 363,531
Deferred	26,658	71,504
	463,753	435,035
State:
Current	275,220	270,109
Deferred	(13,470)	(25,928)
	261,750	244,181
	$ 725,503	$ 679,216

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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