Note 9 - Income Taxes - Components of Income Taxes (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Current:
Federal		$ 240,924
State	3,000	9,000
Total current provision	3,000	249,924
Deferred:
Federal	(459,000)	(2,154)
State
Total deferred (benefit) provision	(459,000)	(2,154)
Income tax expense (benefit) provision	$ (456,000)	$ 247,770