Net Loss Per Share - Other Common Stock Equivalents (Details) - shares	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Total (in shares)	2,953,831	51,430
Options issued and outstanding
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Total (in shares)	28,734	30,469
Inducement options issued and outstanding
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Total (in shares)	868	1
Options available for grant under stock option plans
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Total (in shares)	337,402	17,695
Restricted stock units issued and outstanding
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Total (in shares)	8,408	220
Warrants issued and outstanding
Outstanding common stock equivalents have been excluded from diluted net loss per common share
Total (in shares)	2,578,419	3,045