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v3.23.3

Note 2 - Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2023
Notes Tables |
Debt Securities, Held-to-Maturity [Table Text Block] |
|  | As of |
Held-to-maturity debt securities: |  | September 30, 2023 |  |  | December 31, 2022 |
Amortized cost |  | $ | 19,685 |  |  | $ | 9,341 |
Gross unrecognized gains |  |  | — |  |  |  | — |
Gross unrecognized losses |  |  | (187 | ) |  |  | (168 | )
Fair value |  | $ | 19,498 |  |  | $ | 9,173 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Amortized Cost |  |  | Fair Value |
Within one year |  | $ | 14,802 |  |  | $ | 14,694 |
After one year through two years |  |  | 4,883 |  |  |  | 4,804 |
Total |  | $ | 19,685 |  |  | $ | 19,498 |
Financing Receivable, Allowance for Credit Loss [Table Text Block] |
At January 1, 2022 |  | $ | 223 |
Provision charged to expense |  |  | (19 | )
(Write-offs) / Recoveries |  |  | (94 | )
At December 31, 2022 |  | $ | 110 |
Provision charged to expense |  |  | — |
(Write-offs) / Recoveries |  |  | — |
At September 30, 2023 |  | $ | 110 |

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