Subsequent - Events - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended	9 Months Ended
	Oct. 31, 2022	Oct. 26, 2022	Oct. 21, 2022	Oct. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Common stock, shares issued					41,175,939	38,473,945
Common stock, par value per share					$ 0.00001	$ 0.00001
Net proceeds after deducting underwriting discounts and commission					$ 11,640
Underwriting Agreement
Subsequent Event [Line Items]
Common stock, shares issued	14,000,000	14,000,000		14,000,000
Common stock, par value per share	$ 2.00	$ 2.00		$ 2.00
Underwriter agreed to purchase share price of per share	$ 1.88	$ 1.88		$ 1.88
Underwriter period for option to purchase additional share		30 days		30 days
Option to purchase additional number of shares	2,100,000	2,100,000		2,100,000
Net proceeds after deducting underwriting discounts and commission	$ 25,600			$ 25,600
Estimated net proceeds from offering if underwriter exercises options	$ 29,600			29,600
Underwritten Public Offering | Underwriting Agreement
Subsequent Event [Line Items]
Common stock, par value per share		$ 0.00001
Astellas
Subsequent Event [Line Items]
Upfront payment			$ 20,000	$ 20,000
Upfront payment period			30 days
Astellas | Private Placement [Member] | Securities Purchase Agreement
Subsequent Event [Line Items]
Common stock, shares issued	7,266,342		7,266,342	7,266,342
Aggregate gross proceeds			$ 30,000
Net proceeds after deducting underwriting discounts and commission				$ 30,000