Note 8 - Debt Obligations - Schedule of Debt (Details) (Parentheticals) |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2025 |
Dec. 31, 2024 |
|
| GHF 2021 Note [Member] | ||
| Debt Instrument, Interest Rate, Stated Percentage | 12.00% | 12.00% |
| Maturity date | Apr. 15, 2026 | Apr. 15, 2026 |
| Alvin Fund 2022 Note [Member] | ||
| Debt Instrument, Interest Rate, Stated Percentage | 16.00% | 16.00% |
| Maturity date | Apr. 15, 2026 | Apr. 15, 2026 |
| Alvin Fund 2023 Note [Member] | ||
| Debt Instrument, Interest Rate, Stated Percentage | 12.00% | 12.00% |
| Maturity date | Apr. 15, 2026 | Apr. 15, 2026 |
| Kips Bay Note [Member] | ||
| Debt Instrument, Interest Rate, Stated Percentage | 6.00% | 6.00% |
| Maturity date | Apr. 10, 2026 | Apr. 10, 2026 |
| Aqua Metals Note Payable [Member] | ||
| Debt Instrument, Interest Rate, Stated Percentage | 9.76% | 9.76% |
| Maturity date | Mar. 31, 2025 | Mar. 31, 2025 |