Note 9 - Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

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

	Foreign Currency Translation Adjustments			Unrealized Gains (Losses) on Available-For-Sale Investments			Total
Balance, December 31, 2022	$	(988	)	$	(16	)	$	(1,004	)
Other comprehensive loss		(97	)		(3	)		(100	)
Balance, March 31, 2023		(1,085	)		(19	)		(1,104	)
Other comprehensive income (loss)		(152	)		11			(141	)
Balance, June 30, 2023		(1,237	)		(8	)		(1,245	)
Other comprehensive income (loss)		(23	)		1			(22	)
Balance, September 30, 2023	$	(1,260	)	$	(7	)	$	(1,267	)