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Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Operating Loss Carryforwards [Line Items] |  |  |
Unrecognized tax benefits | $ 412,000 | $ 412,000 | $ 428,000
Interest and penalties | 0 | 0 |
Cumulative interest and penalties | $ 0 | 0 |
Cumulative loss period | 3 years |  |
Valuation allowance | $ 62,698,000 | 57,346,000 |
Increase (decrease) in valuation allowance of deferred tax assets | (5,400,000) | 7,900,000 |
Income before provision for income taxes for foreign subsidiaries | 486,000 | $ 473,000 |
Income related to GILTI | 5,900,000 |  |
Federal |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | 185,400,000 |  |
Tax credit carryforwards | 2,500,000 |  |
State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | 150,800,000 |  |
Tax credit carryforwards | $ 700,000 |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.3) -URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 + Details
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