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Grants Outstanding (Detail) - shares | Dec. 31, 2022 | Dec. 31, 2021
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Common stock, shares authorized | 60,000,000 | 60,000,000
2010 Plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized | 700,000 |
Share Based Compensation Arrangement By Share Based Payment Award Options And Restricted Share Units Outstanding Number | 40,677 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant | 0 |
Options outstanding | 29,047 |
Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options Outstanding, Number | 11,630 |
2014 Plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized | 950,000 |
Share Based Compensation Arrangement By Share Based Payment Award Options And Restricted Share Units Outstanding Number | 415,281 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant | 140 |
2018 Plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized | 275,000 |
Share Based Compensation Arrangement By Share Based Payment Award Options And Restricted Share Units Outstanding Number | 167,916 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant | 86,584 |
Options outstanding | 146,226 |
Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options Outstanding, Number | 21,690 |
RSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options Outstanding, Number | 33,320 | 16,564
RSUs | 2018 Plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant | 18,310 |
Common stock, shares authorized | 40,000 |

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- Definition Share based compensation arrangement by share based payment award options and restricted share units outstanding number. + References No definition available. + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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