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v3.25.1

Note 2 - Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2025
Notes Tables |
Debt Securities, Held-to-Maturity [Table Text Block] |
|  | As of |
Held-to-maturity debt securities: |  | March 31, 2025 |  |  | December 31, 2024 |
Amortized cost |  | $ | 19,349 |  |  | $ | 21,059 |
Gross unrecognized gains |  |  | 59 |  |  |  | 50 |
Gross unrecognized losses |  |  | (12 | ) |  |  | (33 | )
Fair value |  | $ | 19,396 |  |  | $ | 21,076 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Amortized Cost |  |  | Fair Value |
Within one year |  | $ | 9,968 |  |  | $ | 9,984 |
After one year through two years |  |  | 8,400 |  |  |  | 8,423 |
After two years through three years |  |  | 981 |  |  |  | 989 |
Total |  | $ | 19,349 |  |  | $ | 19,396 |
Financing Receivable, Allowance for Credit Loss [Table Text Block] |
At January 1, 2024 |  | $ | 111 |
Provision charged to expense |  |  | — |
(Write-offs) / Recoveries |  |  | (5 | )
At December 31, 2024 |  | $ | 106 |
Provision charged to expense |  |  | — |
(Write-offs) / Recoveries |  |  | — |
At March 31, 2025 |  | $ | 106 |

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