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Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Apr. 17, 2018
Income Tax Disclosure [Line Items]
Operating loss carryforwards	$ 6,000,000.0	$ 6,500,000	$ 8,700,000
Federal statutory rate	21.00%	21.00%
Internal Revenue Service (IRS) [Member]
Income Tax Disclosure [Line Items]
Maximum annual amount of net operating loss carryforward that may be used on a cumulative basis	$ 459,000
Internal Revenue Service (IRS) [Member] | 2011 Acquisition [Member]
Income Tax Disclosure [Line Items]
Operating loss carryforwards, expiration date	Dec. 31, 2035

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Income Tax Disclosure [Line Items]

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

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Expiration date of each operating loss carryforward included in operating loss carryforward, in YYYY-MM-DD format.

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