The amount of stock-based compensation cost has been accrued.

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Employee stock purchase plan percentage of market value.

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Share-based Compensation Arrangement by Share-based Payment Award, Award Minimum Requisite Service Hours Per Week

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Share-based Compensation Arrangement by Share-based Payment Award, Award Minimum Requisite Service Months Worked

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Share-based Compensation Arrangement by Share-based Payment Award, Award Performance Metrics, Number

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested, Number of Installments

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Share-based Compensation Arrangement by Share-based Payment Award, Maximum Contributions to ESPP by Participants, Annual Amount

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Share-based Compensation Arrangement by Share-based Payment Award, Minimum Contributions to ESPP by Participants, Per Pay Period

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Number of Grants in Period

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Weighted-average period over which cost not yet recognized is expected to be recognized for 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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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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The number of grants made 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).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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

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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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Percentage of vesting of award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Stock-Based Compensation - Narrative (Details)	1 Months Ended							12 Months Ended
Stock-Based Compensation - Narrative (Details)	Dec. 31, 2021 USD ($) installment shares	Aug. 31, 2021 installment shares	May 31, 2021 USD ($) mo h shares	Apr. 30, 2021 installment shares	Feb. 28, 2021 shares	Feb. 28, 2020 metric	Jan. 31, 2020 installment shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	May 20, 2021 shares	Dec. 31, 2018 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issued (in shares)								0	2,500	0
Expiration period (in years)							10 years
Options, outstanding, intrinsic value \| $	$ 123,000							$ 123,000	$ 54,000
Options, vested in period, fair value \| $								18,000	6,000	$ 35,000
Stock options compensation not yet recognized \| $	18,000							$ 18,000
Compensation cost not yet recognized period for recognition (in years)								1 year 7 days
Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of installments \| installment							3
Issued (in shares)							2,500
Number of grants distributions in the period (in shares)							1
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation costs \| $	$ 4,500,000							$ 4,500,000
Salaries and Employee Benefits
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense \| $								$ 7,800,000	$ 5,300,000	$ 7,700,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, grants in period (in shares)					178,001
Restricted Stock \| Board of Directors Chairman
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, grants in period (in shares)	452	250		921
Number of installments \| installment	3	3		3
Performance Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, grants in period (in shares)					3,605			51,564	44,741	43,145
Award vesting rights, percentage						100.00%
Award vesting period (in years)						3 years
Number of performance metrics \| metric						2
Nonvested awards, number of shares outstanding (in shares)	118,568							118,568	90,642	58,780		98,958
Performance Vested Restricted Stock Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, grants in period (in shares)					47,959
2021 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance (in shares)											1,300,000
2021 Plan \| Restricted Stock and PRSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards, number of shares outstanding (in shares)	419,360							419,360
Common stock awards, compensation not yet recognized \| $	$ 10,500,000							$ 10,500,000
Compensation cost not yet recognized period for recognition (in years)								1 year 9 months 18 days
2021 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized (in shares)			200,000
ESPP percentage of market value of offering period			85.00%
Award requisite service period (in years)			1 year
Requisite service hours per week, minimum \| h			20
Requisite service months worked in a year \| mo			5
Amount contributed to ESPP for participants (in dollars per pay period) \| $			$ 10
Amount contributed to ESPP for participants, annually \| $			$ 25,000
Maximum employee subscription rate ESPP (percent)			10.00%
Number of shares available for grant (in shares)	193,665							193,665