Organization - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended
	Jul. 22, 2026	Jun. 30, 2025	Jul. 06, 2026	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Cash, cash equivalents and restricted cash		$ 2,879		$ 124		$ 1,385		$ 1,091
Accumulated deficit				$ 926,580		$ 924,622
Common stock, shares outstanding				2,486,140		2,349,480
Common stock, shares authorized				50,000,000		50,000,000
Minimum required amount of stockholder equity						$ 2,500
Total stockholders' equity		3,661		$ 652	$ 1,288	2,153	$ 1,058
Aggregate offering price		998
Subsequent Event [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Minimum market value	$ 5,000
Aggregate offering price	$ 5,000
2020 Equity Incentive Plan [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common stock, shares authorized				601,774
2020 Equity Incentive Plan [Member] | Subsequent Event [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common stock reserved for future issuance			1,000,000
Common Stock [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common stock, shares outstanding				2,486,140
Common stock reserved for future issuance				327,098
Total stockholders' equity		$ 2		$ 2	$ 2	$ 2	$ 2
Series A - 1 Preferred Stock [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common stock, shares outstanding				500
Series A - 2 Preferred Stock [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common stock, shares outstanding				850