Note 10 - Debt (Details Textual) $ in Thousands	6 Months Ended
Oct. 31, 2024 USD ($)
Line of Credit Facility, Interest Rate at Period End	8.40%
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,000
Line of Credit Facility, Remaining Borrowing Capacity	2,000
Long-Term Line of Credit	0
Notes Collateralized by BHCMC's Assets and Compensation Due under State Management Contract Due December 2027 [Member]
Notes Payable	$ 28,144
Debt Instrument, Interest Rate, Stated Percentage	5.32%
Debt Instrument, Term (Year)	7 years
Debt Instrument, Convertible, Remaining Discount Amortization Period (Year)	20 years
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid	$ 19,250
Debt Instrument, Covenant, Debt Service Coverage Ratio	1.3
Debt Instrument, Aggregate Unrestricted Cash Requirement	$ 1,500
Debt Instrument, Collateral Amount	652
Notes Collateralized by BHCMC's Assets and Compensation Due under State Management Contract Due October 2026 [Member]
Notes Payable	$ 6,015
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Debt Instrument, Term (Year)	5 years
Note One Collateralized by Real Estate Due March 2029 [Member]
Notes Payable	$ 707
Debt Instrument, Interest Rate, Stated Percentage	1.75%
Note Two Collateralized by Real Estate Due March 2029 [Member] \| Patriots Bank [Member]
Notes Payable	$ 806
Debt Instrument, Interest Rate, Stated Percentage	4.35%
Debt Instrument, Collateral Amount	$ 554
Note Collateralized by Equipment Due October 2025 [Member]
Notes Payable	$ 28
Debt Instrument, Interest Rate, Stated Percentage	8.13%
Debt Instrument, Collateral Amount	$ 28

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- Definition

The debt service coverage ratio required under the covenant of the debt instrument.

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- Definition

Amount of assets pledged to secure a debt instrument.

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-SubTopic 470
-Section 50
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- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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

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- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

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No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The effective interest rate at the end of the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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