Note 11 - Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Stock by Class [Table Text Block]

	December 31,		December 31,
	2022		2021
Common stock shares authorized		125,000,000		125,000,000
Common stock par value	$	0.001	$	0.001
Common stock shares issued		50,554,179		41,307,617
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,
	2022			2021			2020
Balance at December 31	$	2,668		$	(804	)	$	(236	)
Unrealized loss on note receivable		(496	)		—			—
Pension benefits recognized in OCI		6,404			3,472			(568	)
Balance at December 31	$	8,576		$	2,668		$	(804	)