Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2017
Income tax credits and adjustments period	10 years
CARES Act Loss Carryback	$ (57,000)
Income tax provision (benefit)	$ 50,000	$ 14,000
Federal statutory income tax rate	21.00%	21.00%	34.00%
Adjustments to unrecognized tax benefits	$ 0	$ 0
Tax credit carryforward	$ 57,000
Phase I [Member]
Tax credit expiration date related to investment in two low income housing	Dec. 31, 2023
Phase II [Member]
Tax credit expiration date related to investment in two low income housing	Dec. 31, 2027

Income tax credits and adjustments period.

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Amount of income tax expense (benefit) from reversal of deferred tax asset carried for net operating losses.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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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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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Expiration date of the tax credit carryforward, in CCYY-MM-DD format.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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