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Income Taxes - Total Income Tax Expense Applying U.S. Federal Income Tax Rate (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |
Computed tax expense at statutory federal rates | $ 2,162 | $ 7,553 | $ 5,619
Increase (decrease) in taxes resulting from: |  |  |
State taxes, net of federal income tax benefit | 756 | 1,493 | 1,485
Unrecognized tax benefits | (585) | (1,441) | (1,783)
Bargain purchase gain on business acquisition | 0 | 0 | (35)
Income tax credits | (720) | (1,342) | (1,206)
Foreign tax rate differential | 1,025 | 785 | 262
Stock based compensation | 219 | 55 | 208
Global intangible low-taxed income | 685 | 0 | 162
Change in valuation allowance | 1,376 | 379 | 3,304
Return to provision | 158 | (693) | (651)
Nondeductible / (deductible) expenses | (327) | 989 | (103)
Gross receipts taxes | 425 | 602 | 567
IP migration deferred tax asset | (2,455) | 0 | 0
Other | 59 | 181 | 337
Total | $ 2,778 | $ 8,561 | $ 8,166

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- Definition Amount of reported income tax expense from difference to expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to global intangible low-taxed income (GILTI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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