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Note 11 - Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Stock by Class [Table Text Block]

		December 31,				December 31,
		2020				2019
Common stock shares authorized			125,000,000				125,000,000
Common stock par value		$	0.001			$	0.001
Common stock shares issued			40,704,984				39,941,327
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]

		Year Ended December 31,
(In thousands)		2020				2019				2018
Balance at December 31		$	(236	)		$	2,194			$	(147	)
Pension benefits recognized in OCI			(568	)			(2,430	)			4,133
Available for sale securities recognized in OCI			—				—				(660	)
Reclasses from OCI to net income			—				—				(1,132	)
Balance at December 31		$	(804	)		$	(236	)		$	2,194

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

		Year
		Ended
		December 31,			Affected line item in the consolidated
(In thousands)		2018			statements of income
Retiree medical plan			(1,536	)	Interest income and other, net
Realized gains on available for sale securities			404		Interest and other debt costs
Total pre-tax and net of tax amounts			(1,132	)

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