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The amount of accrued interest for a debt instrument.

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A debt instrument covenant pertaining to the amount of capital raised.

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The percentage of membership interest pledged for a debt instrument.

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Represents the original issue discount percentage related to a debt instrument during the period.

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Represents the percentage increase of the original issue discount of a debt instrument.

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Represents the amount of gain (loss) on debt settlements during the period.

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Represents the amount of proceeds from the issuance of debt expected during the period.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Face amount or stated value per share of common stock.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount.

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For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Note 10 - Convertible and Non-convertible Promissory Notes (Details Textual) $ / shares in Units, € in Millions								1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2026 USD ($) $ / shares shares	Apr. 21, 2026 USD ($) shares	Apr. 21, 2026 EUR (€) shares	Mar. 31, 2026 USD ($) shares	Mar. 03, 2026 USD ($) $ / shares shares	May 29, 2025	Jan. 21, 2025	Jun. 30, 2026 USD ($) $ / shares shares	Jun. 30, 2026 USD ($) $ / shares	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) $ / shares	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) $ / shares	Sep. 05, 2025 $ / shares	Apr. 28, 2025
Convertible Debt, Fair Value Adjustment									$ (139,000)	$ (882,000)	$ (2,502,000)	$ (887,000)
Gain (Loss) on Debt Settlements											5,257,000	(0)
Proceeds from Issuance of Debt											2,031,000	1,716,000
Stock Issued During Period, Value, New Issues										0		60,000
Amortization of Debt Discount (Premium)											$ 227,000	1,837,000
Common Stock, Par or Stated Value Per Share (in dollars per share) \| $ / shares	$ 0.0001							$ 0.0001	$ 0.0001		$ 0.0001		$ 0.0001	$ 0.0001
Series F Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares	750
Series C Convertible Preferred Stock [Member] \| Subscription Agreements [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares					2,625
Stock Issued During Period, Value, New Issues					$ 1,800,000
Shares Issued, Price Per Share (in dollars per share) \| $ / shares					$ 1,000
Common Stock, Par or Stated Value Per Share (in dollars per share) \| $ / shares					$ 0.1
Senior Convertible Note [Member]
Long-Term Debt, Gross	$ 800,000							$ 800,000	$ 800,000		$ 800,000		$ 800,000
Debt Instrument, Interest Rate, Stated Percentage															12.00%
Convertible Debt, Fair Value Adjustment									(70,000.00)	$ (890,000)	(140,000)	$ (1,700,000)
Senior Convertible Note [Member] \| Senior Convertible Notes Converted Into Preferred Stock [Member]
Debt Conversion, Converted Instrument, Amount									0		0
OID Notes [Member]
Long-Term Debt, Gross	$ 100,000							100,000	100,000		100,000		5,600,000
Convertible Debt, Fair Value Adjustment									(63,000)		$ (2,300,000)
Debt Instrument, Original Issue Discount	20.00%	20.00%	20.00%			20.00%
Debt Instrument, Original Issue Discount, Percentage Increase						5.00%					5.00%
Proceeds from Issuance of Debt	$ 1,000,000	$ 230,000	€ 0.2						1,230,000
Debt Instrument, Face Amount	$ 1,250,000							$ 1,250,000	1,250,000		$ 1,250,000
OID Notes [Member] \| Series F Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares	750	240	240					750
Stock Issued During Period, Value, New Issues								$ 0
OID Notes [Member] \| Conversion of Debt Into Series D Convertible Preferred Stock [Member]
Debt Conversion, Converted Instrument, Amount				$ 5,800,000
Debt Conversion, Converted Instrument, Shares Issued (in shares) \| shares				7,583
Debt Conversion, Original Debt, Amount				$ 10,800,000
Gain (Loss) on Debt Settlements				5,100,000
OID Notes [Member] \| Conversion of Debt Into Series E Convertible Preferred Stock [Member]
Debt Conversion, Converted Instrument, Amount				$ 500,000
Debt Conversion, Converted Instrument, Shares Issued (in shares) \| shares				684
Debt Conversion, Original Debt, Amount				$ 700,000
Gain (Loss) on Debt Settlements				$ 200,000
Convertible and Non-convertible Promissory Notes [Member]
Long-Term Debt, Gross	$ 7,300,000				$ 1,000,000			7,300,000	7,300,000		7,300,000		6,200,000
Debt Instrument, Interest Rate, Stated Percentage					10.00%
Debt Instrument, Original Issue Discount							20.00%
Debt Instrument, Accrued Interest	$ 1,400,000				$ 100,000			$ 1,400,000	1,400,000		1,400,000		$ 1,100,000
Interest Expense, Debt									$ 500,000		$ 700,000
Convertible and Non-convertible Promissory Notes [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage	9.00%							9.00%	9.00%		9.00%
Convertible and Non-convertible Promissory Notes [Member] \| Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage	25.00%							25.00%	25.00%		25.00%
March 2026 Restructuring [Member]
Proceeds from Issuance of Debt											$ 800,000
Gains (Losses) on Restructuring of Debt											(1,700,000)
Secured Promissory Notes Sold in Subscription Agreements [Member]
Debt Instrument, Original Issue Discount					20.00%
Proceeds from Issuance of Debt									$ 600,000
Debt Instrument, Face Amount					$ 1,960,000
Long-Term Debt, Fair Value					1,610,000
Debt Instrument, Unamortized Discount					360,000
Amortization of Debt Discount (Premium)									$ 177,105		$ 226,796
Proceeds from Issuance of Debt Expected					1,000,000
Debt Instrument, Covenant, Capital Raise					$ 5,000,000
Debt Instrument, Covenant, Percentage of Membership Interest Pledged											100.00%