Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Taxes
Income tax expense	$ 4,000	$ 52,000	$ 5,000	$ 17,000
Deferred tax expenses	3,000	$ 51,000	3,000	$ 15,000
Operating loss carryforwards	101,900,000		$ 101,900,000
Tax credit carryforward, limitations on use			Under the Tax Cuts and Jobs Act, net operating losses generated in tax years beginning after December 31, 2017 have an unlimited carryforward period, and the amount of net operating loss allowed to be utilized each year is limited to 80% of taxable income
Domestic Tax Authority
Income Taxes
Operating loss carryforwards	98,800,000		$ 98,800,000
New Jersey state income tax
Income Taxes
Operating loss carryforwards	24,200,000		24,200,000
R & D credit carryforwards | Domestic Tax Authority
Income Taxes
Tax credit carryforwards amount	$ 9,400,000		$ 9,400,000