Number of shares options (or share units) previously exercised.

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- Definition

Amount of noncash expense for share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 718
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-Section 50
-Paragraph 2
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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.

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

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

+ References

No definition available.

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- Definition

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

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

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

+ References

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- Definition

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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- Definition

Amount of noncash expense for option under share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
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Deferred Compensation Awards - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	12 Months Ended
	Aug. 13, 2019	Aug. 31, 2017	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, options granted (in shares)			250,000
Options, exercise price per share (usd per share)			$ 10.12	$ 9.02
Options forfeited			49,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number			633,000	498,000
Phantom Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			36 months
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
PSUs and SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			$ 1,600	$ 1,400
2017 stock option grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, options granted (in shares)		465,000
Expiration period			10 years
Fair value of the stock option expense			$ 1,100
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Split-adjusted exercise price of options (usd per share)		$ 9.40
2017 stock option grant \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			$ 300
Shares Exercised			13,904
Options forfeited			68,325
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number			382,771
2017 stock option grant \| Vest on August 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
2017 stock option grant \| Vest on August 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%
2017 stock option grant \| Vest on August 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%
2017 stock option grant \| Vest on August 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%
Twenty Nineteen Stock Option Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, options granted (in shares)	250,000
Expiration period			10 years
Fair value of the stock option expense			$ 800
Split-adjusted exercise price of options (usd per share)	$ 11.26
Twenty Nineteen Stock Option Grant [Member] \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			$ 200	$ 100
Options forfeited			5,714
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number			243,142
Twenty Nineteen Stock Option Grant [Member] \| Vest on August 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Twenty Nineteen Stock Option Grant [Member] \| Vest on August 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%
Twenty Nineteen Stock Option Grant [Member] \| Vest on August 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%
Twenty Nineteen Stock Option Grant [Member] \| Vest On August 2022 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%
Twenty Nineteen Stock Option Grant [Member] \| Vest On August 2023 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%