Nature of the Business - Additional Information (Details) - USD ($)			1 Months Ended	3 Months Ended		6 Months Ended		11 Months Ended	14 Months Ended
	Aug. 05, 2021	May 22, 2020	May 31, 2020	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Aug. 04, 2021	Dec. 31, 2021
Class of Stock [Line Items]
Common stock, issued (in shares)				55,384,868		55,384,868		55,384,868		46,958,776
Accumulated deficit				$ 159,757,000		$ 159,757,000		$ 159,757,000		$ 140,743,000
Operating expenses and capital expenditure requirements (in months)						12 months
2020 ATM Facility
Class of Stock [Line Items]
Common stock, issued (in shares)					556,642		2,233,760
Net proceeds from issuance of common stock					$ 4,266,000		$ 18,982,000		$ 19,479,000
Common stock, issued (in shares)	2,303,545
2020 ATM Facility | Maximum
Class of Stock [Line Items]
Gross proceeds from issuance of common stock		$ 50,000,000	$ 50,000,000
Percentage of gross proceeds of shares sold for compensation (as a percent)		3.00%
2020 Amended Sales Agreement
Class of Stock [Line Items]
Common stock, issued (in shares)				1,025,935		8,363,186
Net proceeds from issuance of common stock				$ 2,110,000		$ 22,666,000
Number of shares issued (in shares)				1,025,935		8,363,186
2020 Amended Sales Agreement | Maximum
Class of Stock [Line Items]
Gross proceeds from issuance of common stock	$ 80,000,000
2021 ATM Facility
Class of Stock [Line Items]
Common stock, issued (in shares)								9,796,813
Net proceeds from issuance of common stock								$ 32,711,000
Number of shares issued (in shares)								9,796,813
2021 ATM Facility | Maximum
Class of Stock [Line Items]
Gross proceeds from issuance of common stock	$ 80,000,000
Percentage of gross proceeds of shares sold for compensation (as a percent)	3.00%