Note 10 - Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Unrealized gains (losses) on available-for-sale securities
Balance at December 31, 2024	$	5
Other comprehensive income (loss), net of tax		1
Balance at March 31, 2025	$	6
Other comprehensive income (loss), net of tax		(6	)
Balance at June 30, 2025	$	—
Other comprehensive income (loss), net of tax		(4	)
Balance at September 30, 2025	$	(4	)

	Unrealized gains (losses) on available-for-sale securities
Balance at December 31, 2023	$	10
Other comprehensive income (loss), net of tax		(14	)
Balance at March 31, 2024	$	(4	)
Other comprehensive income (loss), net of tax		(4	)
Balance at June 30, 2024	$	(8	)
Other comprehensive income (loss), net of tax		35
Balance at September 30, 2024	$	27