Note 11 - Convertible Note (Details Textual)		12 Months Ended
May 19, 2025 USD ($) $ / shares	Mar. 31, 2026 USD ($)
Interest Expense, Debt		$ 300,000
Initial Debentures [Member] \| Convertible Debt [Member]
Debt Instrument, Face Amount	$ 16,775,000
Debt Instrument, Repurchase Amount	15,250,000
Debt Instrument, Additional Principal Option	$ 11,000,000
Debt Instrument, Covenant, Prepayment Premium, After May 19, 2026 and Before May 19, 2027	5.00%
Debt Instrument, Covenant, Prepayment Premium, After May 19, 2027 and Before Maturity	4.00%
Debt Instrument, Change in Control Transaction, Additional Payment Percentage	10.00%
Debt Instrument, Prepayment on Initial Debenture	$ 7,500,000
Debt Instrument, Percentage, Initial Net Proceeds from Disposition	50.00%
Debt Instrument, Amount, Initial Net Proceeds from Disposition	$ 1,000,000
Debt Instrument, Amount, Maximum Proceeds from Initial Disposition	$ 1,000,000
Debt Instrument, Percentage, Disposition of Debt Thereafter	25.00%
Debt Instrument, Amount, Excess Amount	$ 1,000,000
Debt Instrument, Unamortized Discount	1,600,000
Amortization of Debt Discount (Premium)		400,000
Interest Expense, Debt		$ 1,800,000
Debt Instrument, Covenant, Cash Amount	$ 7,500,000
Senior Secured Convertible Debt [Member]
Debt Instrument, Convertible, Conversion Price (in dollars per share) \| $ / shares	$ 21
Debt Instrument, Convertible, Stock Price Trigger (in dollars per share) \| $ / shares	$ 42
Debt Instrument, Convertible, Threshold Consecutive Trading Days	30
Debt Instrument Convertible Debt, Free Cash Flow	$ 3,000,000
Securities Purchase Agreement [Member]
Debt Instrument, Interest Rate, Stated Percentage	11.75%
Securities Purchase Agreement [Member] \| Convertible Debt [Member] \| Debt Instrument, Redemption, Period One [Member]
Debt Instrument, Redemption Amount	$ 100,000
Securities Purchase Agreement [Member] \| Convertible Debt [Member] \| Debt Instrument, Redemption, Period Two [Member]
Debt Instrument, Redemption Amount	150,000
Securities Purchase Agreement [Member] \| Convertible Debt [Member] \| Debt Instrument, Redemption, Period Three [Member]
Debt Instrument, Redemption Amount	250,000
Securities Purchase Agreement [Member] \| Convertible Debt [Member] \| Debt Instrument, Redemption, Period Four [Member]
Debt Instrument, Redemption Amount	$ 300,000

The additional principal option for the debt instrument.

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The excess amount of net proceeds from the disposition of debt.

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The amount of the initial net proceeds from the disposition of debt.

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The maximum proceeds from the debt disposition.

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The additional payment percent of the outstanding principle if there is a change in control transaction for the debt note.

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The required value of free cash flow related to the convertible debt note.

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Amount of cash required to maintain under covenant of debt instrument.

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The amount of prepayment premium the company must pay if they choose to prepay all of the outstanding principal after May 19, 2026 and before May 19, 2027.

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The amount of prepayment premium the company must pay if they choose to prepay all of the outstanding principal after May 19, 2027 and before maturity.

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Represents the redemption amount of a debt instrument.

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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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Price of the entity's common stock which would be required to be attained for the conversion feature embedded in the debt instrument to become effective.

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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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