Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Tax [Line Items]
Operating loss carryforwards	$ 84,300
Research & development tax credits	2,509	$ 3,353
Increase (decrease) in valuation allowance	$ 98	2,648
Operating loss carryforwards, expiration date	Dec. 31, 2037
Net operating loss, tax basis	$ 75,300
Tax credits earned after 2019	$ 2,500
Effective income tax rate reconciliation, at federal statutory income tax rate, percent	21.00%
Percentage of deferred tax assets that have been included in the valuation allowance	100.00%
Valuation allowance, deferred tax asset, increase (decrease), amount	$ 19,100	$ 19,000
Deferred tax assets, operating loss carryforwards, subject to expiration	36,000
Deferred tax assets, operating loss carryforwards, not subject to expiration	48,300
Research and Development [Member]
Income Tax [Line Items]
Research & development tax credits	$ 4,300
Tax credit carryforward, expiration date	Dec. 31, 2028