The aggregate unrecognized cost of equity-based awards expected to be recognized in the future.

No definition available.

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Employee service share based compensation nonvested awards total compensation cost not yet recognized next twelve months.

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Percentage of restricted stock units granted as result of meeting growth rates.

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Share based compensation arrangement by share based payment award restricted stock options to purchase number of shares.

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Amount of cost to be recognized for option under share-based payment arrangement, due in the fourth fiscal year following the latest fiscal year.

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Amount of cost to be recognized for option under share-based payment arrangement, due in the remainder of the fiscal year following the latest fiscal year.

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No definition available.

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Amount of cost to be recognized for option under share-based payment arrangement, due in the second fiscal year following the latest fiscal year.

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Amount of cost to be recognized for option under share-based payment arrangement, due in the third fiscal year following the latest fiscal year.

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No definition available.

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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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).

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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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No definition available.

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

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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Number of options outstanding, including both vested and non-vested options.

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

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

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Share-Based Payment Arrangements (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2019	Dec. 31, 2018
Long Term Incentive Plan 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized	2,000,000
Share-based compensation arrangement by share-based payment award, restricted stock options to purchase number of shares	768,177
Stock options, Granted	0
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options, Outstanding	0
Stock options, Granted	0	0
Stock Options, Exercised	0	0
Stock Options, Forfeited or Expired	0	0
Unrecognized compensation cost related to non-vested share-based compensation arrangements	$ 0
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested share-based compensation arrangements	1,900,000
Allocated share-based compensation expense (benefit)	62,000	$ 97,000
Income tax benefit (expense) of share-based payments recognized in income	13,000	$ 20,000
Employee Service Share-based Compensation Nonvested Awards, Total Compensation Cost Expected to Recognized	1,700,000
Remainder of 2022	500,000
2023	700,000
2024	400,000
2025	100,000
2026	$ 22,000
Restricted Stock Units (RSUs) [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of restricted stock units granted as result of meeting growth rates	50.00%
Restricted Stock Units (RSUs) [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of restricted stock units granted as result of meeting growth rates	150.00%
Restricted Stock Units (RSUs) [Member] \| Long Term Incentive Plan 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, grant date fair value			$ 4.21	$ 18.10	$ 10.87
Restricted Stock Units (RSUs) [Member] \| Long Term Incentive Plan 2015 [Member] \| Third Anniversary [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	50.00%
Restricted Stock Units (RSUs) [Member] \| Long Term Incentive Plan 2015 [Member] \| Fourth Anniversary [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	80.00%
Restricted Stock Units (RSUs) [Member] \| Long Term Incentive Plan 2015 [Member] \| Fifth Anniversary [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage	100.00%