Note 5 - Debt and Warrants Transactions (Details Textual)								1 Months Ended	3 Months Ended			12 Months Ended
	Mar. 04, 2026 USD ($) $ / shares shares	Feb. 03, 2026 USD ($) $ / shares shares	Nov. 05, 2025 USD ($) $ / shares shares	Oct. 02, 2025 USD ($)	Sep. 30, 2025 USD ($) $ / shares shares	Sep. 17, 2025 USD ($)	Sep. 11, 2025 USD ($) $ / shares shares	Apr. 30, 2026 USD ($)	Mar. 31, 2026 USD ($) $ / shares shares	Sep. 30, 2025 USD ($) $ / shares shares	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($) $ / shares shares	Sep. 29, 2025 USD ($) $ / shares	Jul. 31, 2025 $ / shares shares	May 02, 2024 $ / shares	Apr. 03, 2023 $ / shares shares	Aug. 12, 2022 $ / shares shares	Aug. 11, 2022 USD ($)
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares									$ 1			$ 1.21
Class of Warrant or Right, Outstanding (in shares) | shares									27,751,022			16,868,306
Notes Issued									$ 1,889,000		$ 0
Warrant, Down Round Feature, Decrease in Net Income to Common Shareholder, Amount			$ 100,000							$ 600,000
Warrants and Rights Outstanding																		$ 3,800,000
Measurement Input, Share Price [Member]
Warrants and Rights Outstanding, Measurement Input			0.66		0.73					0.73
Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input			0.038		0.036					0.036
Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input			0.94		0.907					0.907
Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input			4.7		4.85					4.85
September 2025 Warrants [Member]
Class of Warrant or Right, Outstanding (in shares) | shares												1,512,934
September 11, 2025 Warrants [Member]
Class of Warrant or Right, Issuance Price (in dollars per share) | $ / shares							$ 0.125
Warrants and Rights Outstanding, Term (Year)							5 years 6 months
September 29, 2025 Warrant [Member]
Warrants and Rights Outstanding, Term (Year)													5 years 6 months
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares			$ 0.6708										$ 0.73
Equity-classified Warrants [Member] | Measurement Input, Share Price [Member] | Minimum [Member]
Warrants and Rights Outstanding, Measurement Input													0.72
Equity-classified Warrants [Member] | Measurement Input, Share Price [Member] | Maximum [Member]
Warrants and Rights Outstanding, Measurement Input													0.73
Equity-classified Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member]
Warrants and Rights Outstanding, Measurement Input													0.036
Equity-classified Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member]
Warrants and Rights Outstanding, Measurement Input													0.037
Equity-classified Warrants [Member] | Measurement Input, Price Volatility [Member] | Minimum [Member]
Warrants and Rights Outstanding, Measurement Input													0.8867
Equity-classified Warrants [Member] | Measurement Input, Price Volatility [Member] | Maximum [Member]
Warrants and Rights Outstanding, Measurement Input													0.8981
Equity-classified Warrants [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input													5.5
Warrants Issued With Convertible Notes [Member]
Warrants and Rights Outstanding, Term (Year)	5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares	$ 0.68
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares	9,402,551
Warrants Issued With Convertible Notes [Member] | Measurement Input, Share Price [Member] | Minimum [Member]
Warrants and Rights Outstanding, Measurement Input	0.48
Warrants Issued With Convertible Notes [Member] | Measurement Input, Share Price [Member] | Maximum [Member]
Warrants and Rights Outstanding, Measurement Input	0.54
Warrants Issued With Convertible Notes [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	0.037
Warrants Issued With Convertible Notes [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	0.90
Warrants Issued With Convertible Notes [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input	5.5
Warrants Issued With Convertible Notes [Member] | Measurement Input, Effective Interest Method [Member]
Warrants and Rights Outstanding, Measurement Input	0.368
July 2025 Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares			$ 0.6708		$ 0.73					$ 0.73			$ 0.73	$ 1.2
Class of Warrant or Right, Outstanding (in shares) | shares			2,885,339		2,651,348		2,651,348			2,651,348				1,612,903
Notes Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares															$ 2.06	$ 26.8
Class of Warrant or Right, Outstanding (in shares) | shares																279,851
Notes Warrants [Member] | Measurement Input, Share Price [Member]
Warrants and Rights Outstanding, Measurement Input									0.72			0.54
Notes Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input									0.037			0.035
Notes Warrants [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input									0.987			1.199
Notes Warrants [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input									1.36			1.61
Additional Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares																	$ 21.2
Class of Warrant or Right, Outstanding (in shares) | shares																	141,509
Additional Warrants [Member] | Measurement Input, Share Price [Member]
Warrants and Rights Outstanding, Measurement Input									0.72			0.54
Additional Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input									0.037			0.035
Additional Warrants [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input									1.161			1.16
Additional Warrants [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input									1.87			2.12
Smith [Member] | September 11, 2025 Warrants [Member]
Proceeds from Issuance of Warrants							$ 100,000
Huffmyer [Member] | September 11, 2025 Warrants [Member]
Proceeds from Issuance of Warrants						$ 15,000
The September 11, 2025 Notes [Member] | Smith [Member]
Debt Instrument, Maximum Borrowing Capacity							700,000
Proceeds from Issuance of Debt							700,000
Gain (Loss) on Extinguishment of Debt	$ 0
Extinguishment of Debt, Amount	$ 500,000
The September 11, 2025 Notes [Member] | Smith [Member] | Subsequent Event [Member]
Repayments of Debt								$ 200,000
The September 11, 2025 Notes [Member] | Smith [Member] | Maximum [Member]
Repayments of Debt									$ 2,200,000
The September 11, 2025 Notes [Member] | Smith [Member] | September 11, 2025 Warrants [Member]
Proceeds from Issuance Notes and Warrants							800,000
The September 11, 2025 Notes [Member] | Huffmyer [Member]
Debt Instrument, Maximum Borrowing Capacity							$ 100,000
Debt Instrument, Interest Rate, Stated Percentage							15.00%
Proceeds from Issuance of Debt						85,000
The September 11, 2025 Notes [Member] | Huffmyer [Member] | September 11, 2025 Warrants [Member]
Proceeds from Issuance Notes and Warrants						$ 100,000
September 29, 2025 Note [Member]
Debt Instrument, Maximum Borrowing Capacity													$ 400,000
Proceeds from Issuance of Debt				$ 100,000	$ 300,000
September 11th and 29th 2025 Notes [Member]
Proceeds from Issuance Notes and Warrants												$ 1,200,000
Debt Instrument, Unamortized Discount												$ 400,000
Secured Promissory Notes [Member] | Smith [Member]
Debt Instrument, Interest Rate, Stated Percentage		15.00%
Debt Instrument, Unamortized Discount		$ 400,000
Secured Promissory Notes [Member] | Smith [Member] | Unregistered Common Stock Warrants [Member]
Warrants and Rights Outstanding, Term (Year)		5 years
Proceeds from Issuance Notes and Warrants		$ 1,000,000
Proceeds from Issuance of Debt		814,979
Proceeds from Issuance of Warrants		$ 185,021
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares		$ 0.68
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares		1,512,934
Secured Promissory Notes [Member] | Smith [Member] | Unregistered Common Stock Warrants [Member] | Measurement Input, Share Price [Member]
Warrants and Rights Outstanding, Measurement Input		0.54
Secured Promissory Notes [Member] | Smith [Member] | Unregistered Common Stock Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input		0.038
Secured Promissory Notes [Member] | Smith [Member] | Unregistered Common Stock Warrants [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input		0.89
Secured Promissory Notes [Member] | Smith [Member] | Unregistered Common Stock Warrants [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input		5.5
Convertible Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage	8.00%
Debt Instrument, Unamortized Discount	$ 2,500,000
Debt Instrument, Face Amount	$ 4,900,000
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares	$ 0.68
Debt Instrument, Default Interest Rate	12.00%
Debt Instrument, Periodic Payment Per $1,000,000	$ 7,000
Notes Issued	1,900,000
Interest Expense, Debt									500,000
Amortization of Debt Issuance Costs and Discounts									$ 400,000
Convertible Notes [Member] | Minimum [Member]
Debt Instrument, Periodic Payment	$ 1,000