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Share-Based Compensation - Equity Incentive Plan & ESPP (FY) (Details) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 28, 2020 USD ($) shares | May 31, 2026 USD ($) shares | Jan. 31, 2026 shares | Jan. 31, 2025 shares | Mar. 31, 2026 USD ($) plan shares | Mar. 31, 2025 USD ($) | Dec. 31, 2025 USD ($) plan shares | Dec. 31, 2024 USD ($)
Share-Based Compensation |  |  |  |  |  |  |  |
Number of equity incentive plans | plan |  |  |  |  | 3 |  | 3 |
Share-based compensation expense | $ |  |  |  |  | $ 556,000 | $ 858,000 | $ 3,001,000 | $ 5,820,000
Equity Incentive Plan |  |  |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |  |  |
Shares authorized |  |  |  |  | 1,106,739 |  |  |
Shares available for future issuance |  |  |  |  | 204,732 |  |  |
Shares available for future grant |  |  |  |  | 405,163 |  |  |
Period till which there is automatic increase in rights granted under the Plan |  |  |  |  | 10 years |  |  |
Percent of the total number of shares of the Company's common stock outstanding |  |  |  |  | 5.00% |  |  |
Additional number of common shares reserved for future issuance |  |  | 159,141 | 155,155 |  |  |  |
Vesting period |  |  |  |  | 4 years |  |  |
Term of award |  |  |  |  | 10 years |  |  |
Equity Incentive Plan 2020 |  |  |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |  |  |
Shares authorized |  |  |  |  |  |  | 947,598 |
Shares available for future issuance |  |  |  |  |  |  | 204,732 |
Shares available for future grant |  |  |  |  |  |  | 433,624 |
Period till which there is automatic increase in rights granted under the Plan |  |  |  |  |  |  | 10 years |
Percent of the total number of shares of the Company's common stock outstanding |  |  |  |  |  |  | 5.00% |
Vesting period |  |  |  |  |  |  | 4 years |
Term of award |  |  |  |  |  |  | 10 years |
Equity inducement plan 2021 |  |  |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |  |  |
Shares authorized |  |  |  |  | 125,000 |  | 125,000 |
Shares available for future issuance |  |  |  |  | 87,634 |  |  |
Shares available for future grant |  |  |  |  |  |  | 87,166 |
Term of award |  |  |  |  | 10 years |  | 10 years |
Employee stock purchase plan |  |  |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |  |  |
Shares authorized | 99,088 |  |  |  |  |  |  |
Shares available for future grant |  |  |  |  | 59,103 |  | 59,103 |
Period till which there is automatic increase in rights granted under ESPP | 10 years |  |  |  |  |  |  |
Percentage of common stock outstanding | 1.00% |  |  |  |  |  |  |
Percentage of stock purchase price | 85.00% |  |  |  |  |  |  |
Percentage of maximum employee contribution | 15.00% |  |  |  |  |  |  |
Maximum amount of common stock that can be purchased | $ | $ 25,000 |  |  |  |  |  |  |
Share-based compensation expense | $ |  |  |  |  | $ 0 | $ 0 | $ 0 | $ 0
Number of shares that can be purchased | 200 |  |  |  |  |  |  |
Employee stock purchase plan | Subsequent event |  |  |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |  |  |
Maximum amount of common stock that can be purchased | $ |  | $ 25,000 |  |  |  |  |  |
Number of shares that can be purchased |  | 2,000 |  |  |  |  |  |

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