Income Taxes (Components for State Income Tax Expense) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Current state taxes	$ 21,100	$ 93,300	$ 91,800	$ 93,300
Deferred state taxes	(6,800)	106,000	(61,200)	106,000
Income tax expense	$ 14,300	$ 199,300	$ 30,600	$ 199,300