Number of stock-based compensation plans.

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- Definition

Share based compensation arrangement by share based payment award award exercising period.

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Share Based Compensation Arrangement By Share Based Payment Award Options Cancelled Forfeited Or Expired In Period

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- Definition

Aggregate number of common shares reserved for future issuance.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Amount of noncash expense for share-based payment arrangement.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

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

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- Definition

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

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- Definition

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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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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Number of share options (or share units) exercised during the current period.

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Stock-Based Compensation (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) ShareBasedCompensationPlan shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)	May 29, 2019 shares	May 16, 2013 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans \| ShareBasedCompensationPlan	2
Compensation cost \| $	$ 899	$ 707	$ 711
Total income tax (expense) benefit \| $	$ 189	$ 148	$ 149
Options exercised	52,358	24,996
Shares granted	0	0
2009 Equity Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available to be issued					272,727
Shares remaining available	115,818
Maximum [Member] \| 2019 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized				300,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting periods exercisable from date of grant	10 years
Shares cancelled, forfeited or expired	545	1,454
Stock Options [Member] \| 2009 Equity Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	36,363
Stock Options [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting periods	1 year
Stock Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting periods	3 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available to be issued	69,648	69,960
Shares vested	40,433	31,189
Shares cancelled, forfeited or expired	6,697	8,678
Unrecognized compensation cost \| $	$ 1,475	$ 1,041
Shares, Forfeited	6,697