Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Taxes [Abstract]
Provision for income taxes at the statutory federal tax rates	$ 151,435	$ 205,528	$ 460,532	$ (321,768)
Increase (reduction) in taxes resulting from:
Dividends received deduction	(7,967)	(7,161)	(16,075)	(13,696)
Tax-exempt interest income	(14,753)	(15,784)	(29,547)	(31,264)
Proration of tax-exempt interest and dividends received deduction	5,499	5,600	11,063	10,968
Nondeductible expenses	24,069	8,725	42,095	14,228
Officer life insurance, net	167	(170)	333	633
Total income tax expense (benefit)	$ 158,450	$ 196,738	$ 468,401	$ (340,899)