Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Income Taxes [Abstract]
Provision for income taxes at the statutory federal tax rates	$ 309,097	$ (527,296)
Increase (reduction) in taxes resulting from:
Dividends received deduction	(8,108)	(6,535)
Tax-exempt interest income	(14,794)	(15,480)
Proration of tax-exempt interest and dividends received deduction	5,564	5,368
Nondeductible expenses	18,026	5,503
Officer life insurance, net	166	803
Total income tax expense (benefit)	$ 309,951	$ (537,637)

Effective Income Tax Rate Reconciliation, Increase (Decrease), Amount [Abstract]

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Effective Income Tax Rate Reconciliation, Proration Tax Exempt Income, Amount

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Income Tax Reconciliation Nondeductible Income Expense Life

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for dividend.

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