Stockholders' Equity - Reserved shares and Common stock (Details)				3 Months Ended
	Jan. 23, 2023	Sep. 08, 2021	Sep. 03, 2021	Mar. 31, 2024 Vote $ / shares shares	Dec. 31, 2023 $ / shares shares	Sep. 30, 2022 $ / shares shares	Sep. 29, 2022 shares
Shares of common stock reserved for issuance
Options issued and outstanding				26,084	26,262
Options available for grant under stock option plans				4,303,288	626,342
Restricted stock unit awards issued and outstanding				2,702,070	2,708,136
Warrants issued and outstanding				4,567,398	11,424,807
Total				11,600,352	14,787,059
Number of voting rights entitled for each share of common stock held | Vote				1
Reverse stock split ratio	0.0133	0.33	0.33
Total shares authorized				358,000,000
Preferred stock, shares authorized (in shares)				10,000,000	10,000,000
Inducement options issued and outstanding
Shares of common stock reserved for issuance
Options issued and outstanding				1,512	1,512
Common Stock | Common stock - voting
Shares of common stock reserved for issuance
Common stock, par value (in dollars per share) | $ / shares				$ 0.0001	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)				298,000,000	298,000,000	298,000,000	150,000,000
Common Stock | Common stock - non-voting
Shares of common stock reserved for issuance
Common stock, par value (in dollars per share) | $ / shares				$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)				50,000,000	50,000,000
Convertible non-voting common stock
Shares of common stock reserved for issuance
Reverse stock split ratio				1