Equity Incentive Plans (Summary of Stock Option Activity) (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares
Equity Incentive Plans
Shares, Balance Beginning | shares	3,165,216
Shares, Granted | shares	1,784,054
Shares, Exercised | shares	(37,282)
Shares, Forfeited/Cancelled | shares	(266,251)
Shares, Balance Ending | shares	4,645,737	3,165,216
Vested and expected to vest at June 30, 2024 | shares	4,645,737
Exercisable at June 30, 2024 | shares	2,627,743
Weighted Average Exercise Price, Outstanding Beginning | $ / shares	$ 5.04
Weighted Average Exercise Price, Granted | $ / shares	3.38
Weighted Average Exercise Price, Exercised | $ / shares	3.38
Weighted Average Exercise Price, Forfeited/Cancelled | $ / shares	15.36
Weighted Average Exercise Price, Outstanding Ending | $ / shares	3.83	$ 5.04
Weighted Average Exercise Price, Vested and expected to vest at June 30, 2024 | $ / shares	3.83
Weighted Average Exercise Price, Exercisable at June 30, 2024 | $ / shares	$ 4.14
Weighted Average Remaining Contractual Term (Years), Outstanding	7 years 1 month 6 days	5 years 10 months 24 days
Weighted Average Remaining Contractual Term (Years), Vested and expected to vest at June 30, 2024	7 years 1 month 6 days
Weighted Average Remaining Contractual Term (Years), Exercisable at June 30, 2024	5 years 3 months 18 days
Aggregate Intrinsic Value, Outstanding Beginning | $	$ 429
Aggregate Intrinsic Value, Exercised | $	24
Aggregate Intrinsic Value, Outstanding Ending | $	144	$ 429
Aggregate Intrinsic Value, Vested and expected to vest at June 30, 2024 | $	144
Aggregate Intrinsic Value, Exercisable at June 30, 2024 | $	$ 144