Note 11 - Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Stock by Class [Table Text Block]

	December 31,		December 31,
	2023		2022
Common stock shares authorized		125,000,000		125,000,000
Common stock par value	$	0.001	$	0.001
Common stock shares issued		52,259,303		50,554,179
Preferred stock shares authorized		3,000,000		3,000,000
Preferred stock par value	No par		No par
Preferred stock shares issued		—		—

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

(In Thousands)	Year Ended December 31,
	2023			2022			2021
Balance at December 31	$	8,576		$	2,668		$	(804	)
Unrealized gain (loss) on note receivable		213			(496	)		—
Pension benefits recognized in OCI		(3,523	)		6,404			3,472
Balance at December 31	$	5,266		$	8,576		$	2,668