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Note 11 - Leases (Details Textual) $ in Thousands |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 16, 2021 USD ($) ft² | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Apr. 01, 2022 USD ($) | Dec. 31, 2021 USD ($)
Operating Lease, Right-of-Use Asset, Amortization Expense |  | $ 334 | $ 231 | $ 972 | $ 760 |  |
Operating Lease, Right-of-Use Asset |  | 5,017 |  | 5,017 |  |  | $ 5,919
Operating Lease, Liability, Total |  | $ 5,626 |  | $ 5,626 |  |  |
Lease Facility in Singapore [Member] |  |  |  |  |  |  |
Lessee, Operating Lease, Renewal Term (Month) |  |  |  |  |  | 24 months |
Operating Lease, Right-of-Use Asset |  |  |  |  |  | $ 51 |
Operating Lease, Liability, Total |  |  |  |  |  | $ 51 |
Automobile Lease for Videology [Member] |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Month) |  | 48 months |  | 48 months |  |  |
Operating Lease, Liability, Total |  | $ 38 |  | $ 38 |  |  |
Lease Facility in Fremont, California [Member] |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Month) | 38 months 15 days |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² | 3,888 |  |  |  |  |  |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | $ 202 |  |  |  |  |  |

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