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Stock-based Compensation - Additional Information (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2013 | Dec. 31, 2012
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Share based compensation expense | $ 558,000 | $ 1,100,000 | $ 1,500,000 |  |
2005 Plan |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Share-based compensation shares authorized under stock option plans (in shares) | 770,000 |  |  |  |
Percent of the fair value options granted | 100.00% |  |  |  |
Weighted average remaining contractual term stock options outstanding | 1 year 9 months 3 days |  |  |  |
Weighted average remaining contractual life for options exercisable | 1 year 9 months 3 days |  |  |  |
Number of options outstanding, Granted (in shares) | 0 |  |  |  |
2005 Plan | Employee Stock Option |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting period | 5 years |  |  |  |
Stock options, when granted, expiration period | 10 years |  |  |  |
2010 Plan |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Share-based compensation shares authorized under stock option plans (in shares) |  |  |  | 2,500,000 | 1,350,000
Percent of the fair value options granted | 100.00% |  |  |  |
Weighted average remaining contractual term stock options outstanding | 2 years 3 months |  |  |  |
Weighted average remaining contractual life for options exercisable | 2 years 3 months |  |  |  |
Number of options outstanding, Granted (in shares) | 0 | 0 |  |  |
Unrecognized compensation costs related to unvested stock options | $ 67,000 |  |  |  |
Unrecognized compensation costs weighted average period | 2 years 2 months 4 days |  |  |  |
2010 Plan | Employee Stock Option |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting period | 5 years |  |  |  |
Stock options, when granted, expiration period | 10 years |  |  |  |
2010 Plan | Restricted Stock Awards |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Tax (provision) benefit realized from awards vested | $ (85,000) | $ 21,000 | $ 144,000 |  |
2010 Plan | Restricted Stock Awards | Share-based Payment Arrangement, Vesting in Three Years |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting period | 3 years | 3 years |  |  |
2010 Plan | Restricted Stock Awards | Share-based Payment Arrangement, Vesting in Five Years |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Vesting period | 5 years | 5 years |  |  |
2021 Plan |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation costs weighted average period | 3 years 3 months |  |  |  |
Shares available for future grant (in shares) | 1,323,207 |  |  |  |
Unrecognized compensation costs related to unvested restricted stock awards | $ 1,400,000 |  |  |  |
2021 Plan | Restricted Stock Awards |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Share-based compensation shares authorized under stock option plans (in shares) | 1,500,000 |  |  |  |
Percent of the fair value options granted | 100.00% |  |  |  |
Number of options outstanding, Granted (in shares) | 0 |  |  |  |
Tax (provision) benefit realized from awards vested | $ 0 |  |  |  |

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- Definition Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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