Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Taxes [Abstract]
Provision for income taxes at the statutory federal tax rates	$ (5,684)	$ (60,088)	$ 176,341	$ 56,056
Increase (reduction) in taxes resulting from:
Dividends received deduction	(8,955)	(8,951)	(28,482)	(26,852)
Tax-exempt interest income	(16,433)	(32,002)	(60,249)	(101,894)
Proration of tax-exempt interest and dividends received deduction	5,939	10,192	21,775	31,684
Officer life insurance, net	3,579	3,579	(11,039)	10,386
Nondeductible expenses	8,404	12,439	24,450	36,608
Prior year true-ups and other		(2,738)		2,221
Total income tax expense	$ (13,150)	$ (77,569)	$ 122,796	$ 8,209