Note 8 - Fair Value Measurements (Details Textual) - Fair Value, Recurring [Member] - USD ($) |
Jun. 30, 2024 |
Dec. 31, 2023 |
---|---|---|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Financial instruments measured at fair value | $ 0 | |
Level 2 [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Financial instruments measured at fair value | $ 0 | |
Level 3 [Member] | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Financial instruments measured at fair value | $ 0 |