Equity Incentive Plan - Restricted stock units (Details) - Restricted stock unit - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Equity Incentive Plan
Unrecognized compensation cost related to RSU	$ 0.1
Recognition period for unrecognized compensation cost	1 year 9 months 18 days
Restricted stock units, Shares
Beginning balance (in shares)	29,712	23,870
Granted (in shares)	18,450	23,090
Vested (in shares)	(17,154)	(10,518)
Cancelled/Forfeited (in shares)		(6,730)
Ending balance (in shares)	31,008	29,712
Weighted-average grant date fair value
Beginning balance, Weighted average grant date fair value	$ 7.83	$ 10
Granted, Weighted average grant date fair value	2.02	5.56
Vested, Weighted average grant date fair value	7.94	9.42
Cancelled/Forfeited, Weighted average grant date fair value		5.25
Ending balance, Weighted average grant date fair value	$ 4.31	$ 7.83
Executive officers
Restricted stock units, Shares
Granted (in shares)	10,090	16,820
Non employee directors
Restricted stock units, Shares
Granted (in shares)	8,360	6,270
Vesting On One Year Anniversary Of Grant Date | Executive officers
Restricted stock units, Shares
Vesting period	1 year	1 year
Vesting On One Year Anniversary Of Grant Date | Non employee directors
Restricted stock units, Shares
Vesting period	1 year	1 year
Vesting On Two Year Anniversary Of Grant Date | Executive officers
Restricted stock units, Shares
Vesting period	2 years	2 years
Vesting On Three Year Anniversary Of Grant Date | Executive officers
Restricted stock units, Shares
Vesting period	3 years	3 years