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Note 3 - Long-term Debt (Details Textual) - USD ($)						3 Months Ended						9 Months Ended		12 Months Ended
	Mar. 06, 2024	Feb. 02, 2023	Jul. 02, 2021	Jul. 01, 2021	Jun. 29, 2021	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Aug. 14, 2023
Unrealized Gain (Loss) on Derivatives												$ (0)	$ (220,000)
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%	8.875%	8.875%
Series A Preferred Stock [Member]
Preferred Stock, Dividend Rate, Percentage			8.875%	8.875%	8.875%							8.875%		8.875%
Conversion Option on Debt [Member]
Derivative Liability		$ 2,400,000
Unrealized Gain (Loss) on Derivatives									$ 350,000				$ 220,000
Conversion Option on Debt [Member] | Reclassified to Additional Paid-in Capital [Member]
Derivative Liability															$ 2,570,000
Warrants Issued to Lenders [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)			500,000
Warrants and Rights Outstanding			$ 1,900,000
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
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
Debt Instrument, Unamortized Discount		2,000,000
Debt Instrument, Convertible, Beneficial Conversion Feature		$ 980,000
New Loan [Member] | Repayment After Thirty-months of the Closing Date [Member]
Debt Instrument, Repayment Fee Percentage			6.00%
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

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Amount of increase (decrease) in additional paid-in capital (APIC) from recognition of extinguishment of debt.

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