Income Taxes (Components for State Income Tax Expense) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Current state taxes	$ 9,900	$ 21,100	$ 15,200	$ 91,800
Deferred state taxes		(6,800)	(47,400)	(61,200)
Income tax expense (benefit)	$ 9,900	$ 14,300	$ (32,200)	$ 30,600