Income Taxes - Provision for Income Tax Benefit by Applying Statutory Federal Income Tax Rate to Operating Loss (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax (benefit) on the loss before income tax expense computed at the federal statutory rate	$ (5,055)	$ (6,501)
State tax (benefit) at statutory rate, net of federal benefit	(527)	(2,342)
Foreign rate differential		12
Change in valuation allowance	5,702	8,711
Change in research and development credits	(652)	(364)
Stock based compensation	(734)	52
Change in fair value of warrants	(6)	(107)
Change in fair value of contingent consideration	(150)	(153)
Change in net operating loss true up	739	712
Change in capital losses	405
Change in state rates	375
Other	$ (97)	$ (20)

Income tax reconciliation change in capital losses.

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- Definition

Income tax reconciliation change in fair value of contingent consideration.

+ References

No definition available.

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- Definition

Income tax reconciliation change in fair value of warrants.

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No definition available.

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- Definition

Income tax reconciliation change in net operating loss.

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No definition available.

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- Definition

Income tax reconciliation change in state rates.

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No definition available.

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- Definition

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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- Definition

The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.

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