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Share-Based Compensation - Narrative (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Oct. 01, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Percentage of average closing price to be paid by employees |  | 85.00% |  |
Share-based compensation |  | $ 4,762,000 | $ 4,600,000 | $ 4,115,000
Estimated pre-vesting forfeiture rate (as a percent) |  | 0.50% |  |
Aggregate intrinsic value of stock options exercised |  | $ 559,000 | 261,000 |
Stock options exercised |  | $ 198,000 | 115,000 | 144,000
Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock option term |  | 10 years |  |
Stock options vesting percentage |  | 100.00% |  |
Unrecognized compensation expense |  | $ 0 |  |
RSAs |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vested period |  | 3 years |  |
Income tax expense at vesting |  | $ 112,000 | $ 394,000 |
Income tax benefit at vesting |  |  |  | $ 363,000
Unrecognized compensation expense |  | $ 8,400,000 |  |
Unrecognized compensation expense expected recognition period |  | 1 year 10 months 24 days |  |
ESPP |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Unrecognized compensation expense |  | $ 0 |  |
Grant date fair value of ESPP options | $ 25,000 |  |  |
Minimum | Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vested period |  | 1 year |  |
Maximum | Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vested period |  | 2 years |  |

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value Of Awards + References No definition available. + Details
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- Definition Share Based Compensation Arrangements By Share Based Payment Award Percentage Of Market Price At Eligible Employees Granted Options To Purchase Shares + References No definition available. + Details
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- Definition Amount of decrease in additional paid in capital (APIC) resulting from a tax deficiency associated with a share-based compensation plan other than an employee stock ownership plan (ESOP). + References No definition available. + Details
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- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121829988&loc=d3e23524-113945 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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