Commitments and Contingencies - Narrative (FY) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 9 Months Ended | 62 Months Ended | ||||
|---|---|---|---|---|---|---|---|---|
Dec. 12, 2024 |
Jun. 30, 2025 |
Dec. 31, 2024 |
Jun. 30, 2025 |
Oct. 01, 2024 |
Jun. 30, 2025 |
Dec. 31, 2023 |
Apr. 22, 2020 |
|
| Commitments and Contingencies Disclosure [Abstract] | ||||||||
| Guaranty amount | $ 5,000 | |||||||
| Amounts paid under the guaranty | $ 0 | $ 0 | ||||||
| Interest paid under the guaranty | $ 0 | 0 | ||||||
| Principal outstanding under the guaranty | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | |||
| License agreement, transfer fee | $ 500 | |||||||
| License agreement, upfront fee | 500 | |||||||
| License agreement, semi-annual fee | $ 65 | |||||||
| License agreement, semi-annual fee expensed | $ 65 | $ 11 | $ 33 | |||||