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Note G - Stock-based Compensation - Cash Stock Appreciations Rights (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Balance, number of shares (in shares)	0	12,676
Unvested shares outstanding, weighted average grant date fair value (in dollars per share)	$ 0	$ 9.70
Outstanding, weighted-average remaining contractual term (Year)		7 years 5 months 23 days
Granted, number of shares (in shares)		0
Granted, weighted average grant date fair value (in dollars per share)		$ 0
Exercised, number of shares (in shares)		0
Exercised, weighted average grant date fair value (in dollars per share)		$ 0
Expired, number of shares (in shares)		(9,507)
Expired, weighted average grant date fair value (in dollars per share)		$ 9.70
Forfeited, number of shares (in shares)		(3,169)
Forfeited, weighted average grant date fair value (in dollars per share)		$ 9.70

X

- Definition

The weighted average fair value at grant date for nonvested equity-based awards exercised during the period on other than stock (or unit) option plans

+ References

No definition available.

+ Details

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were expiration during period.

+ References

No definition available.

+ Details

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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-Topic 718
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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of non-option equity instruments exercised by participants.

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- Definition

Number of shares under non-option equity instrument agreements for which rights to exercise lapsed.

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Net number of non-option equity instruments granted to participants.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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