Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Weighted Average Number of Shares [Table Text Block]

	Years ended December 31,
	2022		2021		2020
Weighted average shares outstanding – basic		104,141		105,359		105,700
Effect of common stock equivalents		1,135		1,234		1,066
Weighted average shares outstanding – diluted		105,276		106,593		106,766