Equity Incentive Plan - Restricted stock units (Details) - Unvested restricted stock units - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Unrecognized compensation cost related to RSU	$ 0.2
Recognition period for unrecognized compensation cost	1 year 10 months 24 days
Restricted stock units
Beginning balance (in shares)	23,870	12,734
Granted (in shares)	23,090	20,493
Vested (in shares)	(10,518)	(5,102)
Cancelled/Forfeited (in shares)	(6,730)	(4,255)
Ending balance (in shares)	29,712	23,870
Weighted average grant date fair value
Beginning balance, Weighted average grant date fair value	$ 10	$ 21.8
Granted, Weighted average grant date fair value	5.56	8.81
Vested, Weighted average grant date fair value	5.08	21.8
Cancelled/Forfeited, Weighted average grant date fair value	5.25	21.8
Ending balance, Weighted average grant date fair value	$ 7.83	$ 10
Executive officers
Restricted stock units
Granted (in shares)	16,820	17,493
Cancelled/Forfeited (in shares)	(6,730)
Non employee directors
Restricted stock units
Granted (in shares)	6,270	3,000
Vesting On One Year Anniversary Of Grant Date | Executive officers
Restricted stock units
Vesting period	1 year	1 year
Vesting On One Year Anniversary Of Grant Date | Non employee directors
Restricted stock units
Vesting period		1 year
Vesting On Two Year Anniversary Of Grant Date | Executive officers
Restricted stock units
Vesting period	2 years	2 years
Vesting On Three Year Anniversary Of Grant Date | Executive officers
Restricted stock units
Vesting period	3 years	3 years