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Stock-Based Compensation (Valuation Assumptions) (Details)	6 Months Ended
	Jun. 30, 2023 $ / shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected Life	10 years
Expected Volatility	69.81%
Risk Free Interest Rate	3.65%
Stock Appreciation Rights (SARs) [Member] | 1/24/2020 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Grant Year	2020
Grant Date	Jan. 24, 2020
Expected Life	3 years 4 months 24 days
Expected Volatility	94.06%
Expected Dividend Yield	0.00%
Risk Free Interest Rate	3.66%
Fair Value Per Award	$ 2
Stock Appreciation Rights (SARs) [Member] | 11/30/2020 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Grant Year	2020
Grant Date	Nov. 30, 2020
Expected Life	4 years 1 month 6 days
Expected Volatility	89.29%
Expected Dividend Yield	0.00%
Risk Free Interest Rate	3.54%
Fair Value Per Award	$ 1.85
Stock Appreciation Rights (SARs) [Member] | 1/5/2021 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Grant Year	2021
Grant Date	Jan. 05, 2021
Expected Life	4 years 2 months 12 days
Expected Volatility	88.36%
Expected Dividend Yield	0.00%
Risk Free Interest Rate	3.52%
Fair Value Per Award	$ 1.89

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Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Fair Value Per Award

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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