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Note 3 - Long-term Debt (Details Textual) - USD ($)						3 Months Ended				6 Months Ended	12 Months Ended
	Mar. 06, 2024	Feb. 02, 2023	Jul. 02, 2021	Jul. 01, 2021	Jun. 29, 2021	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Dec. 31, 2024	Mar. 07, 2025	Dec. 31, 2023
Adjustment to Additional Paid-in Capital, Extinguishment of Debt	$ 1,900,000								$ 1,928,000
Adjustments to Additional Paid in Capital, Warrant Issued									$ 887,000
Preferred Stock, Dividend Rate, Percentage						8.875%	8.875%	8.875%	8.875%
Series A Preferred Stock [Member]
Preferred Stock, Dividend Rate, Percentage			8.875%	8.875%	8.875%					8.875%	8.875%
Hareema [Member]
Shares, Outstanding (in shares)						25,695,300				25,695,300
Common Stock Ownership, Percent						31.40%				31.40%
Heerema Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)	1,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 5											$ 4.75
Adjustments to Additional Paid in Capital, Warrant Issued	$ 900,000
New Loan [Member]
Debt Instrument, Face Amount			$ 50,000,000
Debt Instrument, Interest Rate, Stated Percentage		7.00%	7.00%
Repayments of Debt		$ 15,000,000
Debt Instrument, Convertible, Maximum Amount		$ 15,000,000
Debt Instrument, Convertible, Conversion Price (in dollars per share)		$ 4.8
Debt Instrument, Principal Amount with Interest Paid in Cash		$ 20,000,000
Debt Instrument, Principal Amount with Interest Paid in Kind		$ 15,000,000
New Loan [Member] | Issuance After One Year of the Closing Date [Member]
Debt Instrument, Prepay Amount, Percentage of the Cash Proceeds Received			75.00%
Their Amended Credit Agreement [Member]
Debt Instrument, Face Amount	20,000,000
Debt Instrument, Fee Amount	$ 479,845
Shares Issued, Price Per Share (in dollars per share)	$ 2.89
Shares Issued For Debt Agreement, Shares (in shares)	166,036
Secured Non Convertible Terms Loans [Member]
Debt Instrument, Face Amount	$ 21,200,000												$ 20,000,000
Convertible Loans [Member]
Debt Instrument, Face Amount	$ 16,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.00%
Debt Instrument, Convertible, Conversion Price (in dollars per share)	$ 5.3						$ 5.04

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