Note 8 - Leases (Details Textual) - USD ($) |
Dec. 09, 2025 |
Jun. 30, 2026 |
Dec. 31, 2025 |
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|---|---|---|---|---|---|
| Operating Lease and Finance lease, Right-of-Use Asset | [1] | $ 311,000 | $ 442,000 | ||
| Operating Lease, Liability | 319,000 | ||||
| Finance Lease, Liability | $ 122,000 | ||||
| Real Estate Lease One [Member] | |||||
| Lessee, Operating Lease, Term of Contract (Month) | 36 months | ||||
| Real Estate Lease Two [Member] | |||||
| Lessee, Operating Lease, Term of Contract (Month) | 37 months | ||||
| Innovation Center [Member] | |||||
| Incremental Borrowing Rate | 9.26% | ||||
| Operating Lease, Right-of-Use Asset, Increase/Decrease | $ 147,000 | ||||
| Increase (Decrease) in Operating Lease Liability | $ 159,000 | ||||
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