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v3.24.3

Note 3 - Cash, Cash Equivalents, and Marketable Securities - Available-for-sale Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Money Market Funds [Member] |  |
Amortized cost | $ 3,897 | $ 5,113
Gross unrealized gains | 0 | 0
Gross unrealized losses | 0 | 0
Fair value | 3,897 | 5,113
US Treasury Securities [Member] |  |
Amortized cost |  | 19,883
Gross unrealized gains |  | 1
Gross unrealized losses |  | 0
Fair value |  | 19,884
Cash Equivalents [Member] |  |
Amortized cost | 3,897 | 24,996
Gross unrealized gains | 0 | 1
Gross unrealized losses | 0 | 0
Fair value | 3,897 | 24,997
Cash [Member] |  |
Amortized cost | 10,748 | 3,824
Gross unrealized gains | 0 | 0
Gross unrealized losses | 0 | 0
Fair value | 10,748 | 3,824
Cash and Cash Equivalents [Member] |  |
Amortized cost | 14,645 | 28,820
Gross unrealized gains | 0 | 1
Gross unrealized losses | 0 | 0
Fair value | $ 14,645 | 28,821
Us Treasury Securities with Maturity Greater than 90 Days but Less than 1 Year [Member] |  |
Amortized cost |  | 6,179
Gross unrealized gains |  | 0
Gross unrealized losses |  | 0
Fair value |  | 6,179
Marketable Securities [Member] |  |
Amortized cost |  | 6,179
Gross unrealized gains |  | 0
Gross unrealized losses |  | 0
Fair value |  | $ 6,179

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