Note 6 - Income Taxes (Details Textual) - USD ($)	1 Months Ended		3 Months Ended	12 Months Ended
	Apr. 30, 2019	Mar. 31, 2019	Jun. 30, 2019	Dec. 31, 2019	Jan. 01, 2021
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability			$ 2,700,000	$ 1,300,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment to Per Diluted Share (in dollars per share)			$ 0.12	$ 0.06
Forecast [Member]
Unrecognized Deferred Tax Asset that Would Impact Income Tax Expense (Benefit)					$ 200,000
State and Local Jurisdiction [Member] | Kentucky Department of Revenue [Member]
Franchise Tax as Percent of Net Capital		1.10%
Average Franchise Tax Over Two Year-end Periods		$ 2,500,000
State Corporate Income Tax as Percent of Earnings Before Income Tax Expense	50.00%	5.00%