Note 11 - Subsequent Events	9 Months Ended
Sep. 30, 2024
Notes to Financial Statements
Subsequent Events [Text Block]	*11.* Subsequent Events In October 2024, the Board approved changes to the performance-based vesting conditions of certain unvested outstanding common stock option awards that were improbable of vesting. Specifically, certain performance-based stock option awards were changed to time-based vesting criteria and certain performance-based stock option awards were changed to market-based vesting criteria. Based on our preliminary analysis, the Company estimates it will recognize approximately $12 million of stock-based compensation expense over the next 1 to 4 years from these modified stock option awards.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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