Note 7 - Accrued Expenses - Restructuring Activity (Details) - Severance and Benefits Costs [Member] $ in Thousands	3 Months Ended
Mar. 31, 2024 USD ($)
Balance at December 31, 2023	$ 5,105
Adjustments to restructuring charges	(286)
Cash payments	(1,185)
Balance at March 31, 2024	$ 3,634

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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