Note 12 - Leases (Details Textual) - USD ($) $ in Thousands |
6 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Apr. 01, 2026 |
Dec. 01, 2025 |
Sep. 30, 2025 |
|
| Operating Lease, Right-of-Use Asset | $ 799 | $ 134 | ||||
| Sublease Amount, Monthly | $ 6 | |||||
| Operating Lease, Payments | $ 120 | $ 113 | ||||
| Operating Lease, Weighted Average Remaining Lease Term (Year) | 4 years 6 months | |||||
| Operating Lease, Weighted Average Discount Rate, Percent | 10.80% | |||||
| Revision of Prior Period, Adjustment [Member] | ||||||
| Operating Lease, Right-of-Use Asset | $ 100 | |||||
| Garden City, New York Lease [Member] | ||||||
| Operating Lease, Monthly Payment | $ 15 | $ 7 | ||||