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Note 17 - Subsequent Events (Details Textual)								6 Months Ended
Note 17 - Subsequent Events (Details Textual)	Aug. 11, 2026 USD ($) $ / shares shares	Aug. 10, 2026 USD ($) $ / shares shares	Aug. 06, 2026 $ / shares shares	Jul. 30, 2026 shares	Jul. 28, 2026 USD ($) shares	Apr. 30, 2026	Oct. 27, 2025 shares	Jun. 30, 2026 shares	Jun. 30, 2025 shares	Sep. 30, 2025 USD ($)
Restricted Stock [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited (in shares)								250	2,575
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares)								250	7,050
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)								3 years	3 years
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio						10
Conversion of Partitioned Notes to Common Stock [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)							42,903
Subsequent Event [Member]
Share Price (in dollars per share) \| $ / shares			$ 3.98
Subsequent Event [Member] \| Existing Investor [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	618,334
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) \| $ / shares	$ 4.06	$ 10.2
Subsequent Event [Member] \| Additional Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	1,236,668
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) \| $ / shares	$ 4.06
Proceeds from Issuance of Warrants \| $	$ 2,500,000
Subsequent Event [Member] \| Restricted Stock [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited (in shares)				250
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares)			800
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			3 years
Shares Issued, Price Per Share (in dollars per share) \| $ / shares			$ 3.98
Subsequent Event [Member] \| Conversion of Partitioned Notes to Common Stock [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)		37,792			43,308
Partitioned Note [Member] \| Subsequent Event [Member]
Debt Instrument, Face Amount \| $					$ 200,000
The 2025 Note [Member] \| Senior Secured Promissory Note [Member]
Debt Instrument, Face Amount \| $										$ 1,130,000
The 2025 Note [Member] \| Subsequent Event [Member] \| Senior Secured Promissory Note [Member]
Debt Instrument, Increase (Decrease), Net \| $					$ (200,000)
The 2025 Promissory Note [Member] \| Subsequent Event [Member]
Debt Instrument, Face Amount \| $		$ 150,000
Long-Term Debt, Gross \| $		$ 150,000