Note 5 - Leases (Details Textual) $ in Thousands |
1 Months Ended | 3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
Jul. 31, 2025
USD ($)
ft²
|
Sep. 30, 2026
USD ($)
|
Sep. 30, 2025
USD ($)
|
Sep. 30, 2026
USD ($)
|
Sep. 30, 2025
USD ($)
|
Apr. 01, 2025
ft²
|
Aug. 31, 2023
ft²
|
Jun. 30, 2012
USD ($)
ft²
|
Dec. 31, 2011 |
|
| Operating Lease, Expense | $ 300 | $ 1,100 | $ 1,700 | $ 3,400 | |||||
| Sublease Income | $ 0 | $ 200 | $ 200 | $ 700 | |||||
| CALIFORNIA | |||||||||
| Area of Subleased Property (Square Foot) | ft² | 12,429 | 13,916 | |||||||
| Lease Agreement One [Member] | |||||||||
| Lessee, Operating Lease, Term of Contract (Year) | 7 years | ||||||||
| Area of Leased Property (Square Foot) | ft² | 26,700 | ||||||||
| Lessee, Operating Lease, Renewal Term (Year) | 5 years 5 months | ||||||||
| Lease Option To Extend Term (Year) | 5 years | ||||||||
| Letters of Credit Outstanding, Amount | $ 1,000 | ||||||||
| Lease Agreement Two [Member] | |||||||||
| Area of Leased Property (Square Foot) | ft² | 29,470 | ||||||||
| Letters of Credit Outstanding, Amount | $ 1,100 | ||||||||