Note 3 - Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2026

Notes Tables

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

		Three Months Ended								Six Months Ended
		June 30,								June 30,
		2026				2025				2026				2025
2029 Notes convertible to common stock ⁽¹⁾⁽²⁾			11,084,027				5,915,742				11,267,933				2,974,213
2026 Notes convertible to common stock ⁽¹⁾⁽³⁾			—				3,280,240				—				4,281,266
Outstanding options to purchase common stock			6,410,110				981,651				6,588,423				2,790,290
Share-settled liability ⁽⁴⁾			—				552,662				—				277,858
Total potentially dilutive shares excluded from net income (loss) per share			17,494,137				10,730,295				17,856,356				10,323,627