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Note 6 - Stockholders' Equity and Dilutive Equity Instruments (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

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

(In Thousands)		Three Months Ended
		June 30, 2023				June 30, 2022
Balance at March 31, 2023 and 2022		$	8,254			$	2,471
Unrealized loss on note receivable			(184	)			(846	)
Pension benefits recognized in OCI			(3,504	)			138
Balance at June 30, 2023 and 2022		$	4,566			$	1,763

(In Thousands)		Six Months Ended
		June 30, 2023				June 30, 2022
Balance at December 31, 2022 and 2021		$	8,576			$	2,668
Unrealized loss on note receivable			(316	)			(846	)
Pension benefits recognized in OCI			(3,694	)			(59	)
Balance at June 30, 2023 and 2022		$	4,566			$	1,763

Schedule of Total Shares Outstanding Including Warrants and Restricted Stock Units [Table Text Block]

Total shares outstanding including warrants, restricted stock units and stock options		June 30, 2023				June 30, 2022
Common shares outstanding			50,895,235				42,029,882
New creditor warrants (strike price $0.001 per common share)			81,244				395,401
GulfMark creditor warrants (strike price $0.01 per common share)			100,179				309,351
SPO acquisition warrants (strike price $0.001 per common share)			—				8,100,000
Restricted stock units and stock options			1,520,226				1,627,083
Total			52,596,884				52,461,717

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-Publisher FASB
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