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Note 10 - Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Stock by Class [Table Text Block]

		December 31,				December 31,
		2021				2020
Common stock shares authorized			125,000,000				125,000,000
Common stock par value		$	0.001			$	0.001
Common stock shares issued			41,307,617				40,704,984
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,
		2021				2020				2019
Balance at December 31		$	(804	)		$	(236	)		$	2,194
Pension benefits recognized in OCI			3,472				(568	)			(2,430	)
Balance at December 31		$	2,668			$	(804	)		$	(236	)

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