Income Taxes - Narrative (Details)	Dec. 31, 2022 USD ($) taxPosition	Dec. 31, 2021 USD ($) taxPosition
Income Tax Disclosure [Line Items]
Valuation allowance	$ 83,788,000	$ 72,530,000
Number of uncertain tax positions | taxPosition	0	0
Unrecognized tax benefits	$ 0	$ 0
Penalties and interest accrued	0	0
Research and development, costs capitalized	16,560,000
Domestic Tax Authority
Income Tax Disclosure [Line Items]
Operating loss carryforwards	$ 123,922,000	105,722,000
Research and development, amortization period (in years)	5 years
State and Local Jurisdiction
Income Tax Disclosure [Line Items]
Operating loss carryforwards	$ 104,238,000	$ 93,304,000
Foreign Tax Authority
Income Tax Disclosure [Line Items]
Research and development, amortization period (in years)	15 years