Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 19, 2017
Income Tax Disclosure [Line Items]
Taxes on income	$ 0	$ 0
Valuation allowance	79,977,000	71,589,000
Net deferred tax asset	0	0
Change in valuation allowance	8,400,000	19,000,000.0
Federal research tax credit carryforwards	$ 8,100,000	5,900,000	$ 700,000
Income tax examination, description	The Company is subject to income taxes in the United States and Israel and Australia. The Company files income tax returns in the U.S. and in several states. The federal and state tax returns are generally subject to tax examination by taxing authorities for tax years December 31, 2019 to present. To the extent the Company has tax attribute carryforwards, the tax years in which the attribute was generated may still be adjusted upon examination by the Internal Revenue Service or state tax authorities to the extent utilized in a future period. The Israeli income tax returns remain open to examination beginning in 2013 to present. The Australia income tax returns remain open to examination beginning in 2021 to present. If and when the Company claims NOL carryforwards from any prior years against future taxable income, those losses may be examined by the taxing authorities.
Earliest Tax Year [Member]
Income Tax Disclosure [Line Items]
Federal research tax credit expiry, beginning period	2026
Latest Tax Year [Member]
Income Tax Disclosure [Line Items]
Federal research tax credit expiry, beginning period	2041
Federal [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 159,200,000	158,800,000	$ 77,200,000
U.S. federal NOL carryforwards, not subject to expiration	$ 84,100,000
Net operating loss carryforwards eligible to offset taxable income, maximum	80.00%
Federal [Member] | Earliest Tax Year [Member]
Income Tax Disclosure [Line Items]
U.S. net operating loss expiry, beginning period	2023
Federal [Member] | Latest Tax Year [Member]
Income Tax Disclosure [Line Items]
U.S. net operating loss expiry, beginning period	2037
State [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 25,900,000	24,200,000
Israel Tax Authority [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 101,200,000	$ 99,300,000