Proceeds from stock options exercised and employee stock purchase plan.

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instrument, Percentage Of Share Price

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No definition available.

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Cancelled In Period

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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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- Definition

Amount of expense for employee benefit and equity-based compensation.

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No definition available.

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- Definition

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

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- Definition

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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- Definition

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).

+ References

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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.

+ References

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- Definition

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

+ References

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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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No definition available.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

For presentations that combine terminations, 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 or that expired.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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

+ References

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

Number of shares issued under share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 718
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- Definition

Number of non-vested options outstanding.

+ References

No definition available.

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- Definition

Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

+ References

No definition available.

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- Definition

Number of shares related to Restricted Stock Award forfeited during the period.

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- Definition

Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Stockholder's Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	$ 705		$ 1,055	$ 1,586	$ 1,987
Proceeds from stock options exercised and employee stock purchase plan				$ 333	2,473
Stock options exercised (in shares)				248,000
Stock options cancelled (in shares)				193,000
Weighted average grant date fair value (in USD per share)	$ 8.29			$ 8.29
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	$ 701		1,033	$ 1,560	$ 1,957
Unrecognized compensation expense	$ 3,286			$ 3,286
Weighted-average period of recognition				2 years 9 months 14 days
Shares issued (in shares)	18,000			41,000
Proceeds from stock options exercised and employee stock purchase plan	$ 149			$ 149
Restricted stock surrendered (in shares)	0			14,000
Stock options granted (in shares)	398,000			398,000	496,000
Stock options expired (in shares)	159,000			329,000
Stock options outstanding (in shares)	1,948,000			1,948,000
Stock options outstanding, weighted average exercise price (in USD per share)	$ 9.83			$ 9.83
Stock options exercisable (in shares)	858,000			858,000
Exercisable stock options, weighted average exercise price (in USD per share)	$ 10.39			$ 10.39
Stock Options \| President And Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cost of compensation		$ (85)
Stock Options \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cost of compensation	$ 48	$ (81)
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment	$ 4		$ 22
Employee Stock \| ESPP Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment				$ 26	$ 30
Percentage of Company's common stock share price	85.00%			85.00%
Stock options issued ESPP (in shares)	0		0	22,000	0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 3,499			$ 3,499
Weighted-average period of recognition				2 years 10 months 6 days
Restricted stock surrendered (in shares)	0			0
Restricted stock (in shares)	183,000			183,000
Restricted stock award, forfeitures, less than (in shares)	26,000			86,000
Restricted stock vested (in shares)	79,000			147,000
Restricted stock outstanding (in shares)	440,000			440,000
Unvested outstanding options (in shares)	0			0
Restricted Stock \| President And Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cost of compensation				$ 186
Restricted Stock \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cost of compensation	$ 57			$ 125
Restricted Stock \| Executive Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cost of compensation	$ 66
Performance-Based or Market-Based Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested outstanding options (in shares)	0			0