Stock-Based Compensation - 2019 Equity Incentive Plan (Novosteo) (Details) - USD ($)		3 Months Ended
	May 19, 2022	Mar. 31, 2026	Mar. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation		$ 1,286,000	$ 1,386,000
Restricted Stock Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation		$ 0	79,000
2019 Novosteo Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Maximum aggregate number of shares that may be issued under the plan (in shares)	54,498
Common stock reserved for issuance (in shares)		24,680
Income tax benefits recognized		$ 0
2019 Novosteo Plan \| Employee Stock Option
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Warrants to purchase common stock (in USD per share)	$ 0.0911
Award grant period	10 years
Rate of purchase price of stock on fair value (as a percent)	100.00%
Voting rights in percentage	0.10
Stock options granted maximum period	10 years
Stock based awards vesting period	4 years
2019 Novosteo Plan \| Employee Stock Option \| One Year Anniversary
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock based awards vesting period	1 year
Award vesting rights	25.00%
2019 Novosteo Plan \| Employee Stock Option \| Three Year Anniversary
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock based awards vesting period	3 years
Award vesting rights	75.00%
2019 Novosteo Plan \| Employee Stock Option \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Rate of purchase price of stock on fair value (as a percent)	110.00%
Monthly installments over the remaining vesting period	4 years
2019 Novosteo Plan \| Employee Stock Option \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Monthly installments over the remaining vesting period	3 years
2019 Novosteo Plan \| Restricted Stock Awards
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation		44,000	49,000
Income tax benefits recognized		0
Total fair value of shares vested			$ 100,000
Unamortized employee stock-based compensation		$ 0

Quince Therapeutics, Inc. 10-Q