Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Fair Value Measurement - Level 3 of Valuation Hierarchy Measured at Fair Value (Details)

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Note 11 - Fair Value Measurement - Level 3 of Valuation Hierarchy Measured at Fair Value (Details) - Debt Security, Corporate, US [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Fair value, beginning of period $ 6,860 $ 6,000 $ 10,860 $ 16,992
Transfers into Level 3 0 0 0 0
Total realized gains included in income 0 0 0 0
Changes in unrealized gains/losses included in other comprehensive income for assets and liabilities still held at period-end 0 0 160 (805)
Purchases 0 0 0 0
Transfers out of Level 3 0 0 (4,160) (10,187)
Fair value, end of period $ 6,860 $ 6,000 $ 6,860 $ 6,000