Note 3 - Related-party Transactions - Related Party Long-term Debt Outstanding (Details) - Related Party [Member] - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
LEH Total	$ 2,138	$ 2,541
Less: Long-term debt, related party, current portion	(1,862)	(1,459)
Less: Line of credit, related party	(10,200)	(3,250)
Interest payable	813	1,437
Less: Long-term debt, related party, current portion	(813)	(1,437)
Long-term interest payable, related party, net of current portion	0	0
Lazarus Energy Holdings (LEH) [Member]
LEH Total	14,200	7,250
Interest payable	711	1,308
BDEC Guaranty Fee Agreement [Member]
Interest payable	102	129
Lazarus Energy Holdings (LEH) [Member] \| BDPL-LEH Loan Agreement [Member]
Amended and Restated BDPL-LEH Loan Agreement	4,000	4,000
Interest payable	711	1,308
Revolving Credit Facility [Member] \| Affiliate Revolving Credit Agreement [Member]
Line of credit, related party	10,200	3,250
Less: Line of credit, related party	(10,200)
Interest payable	$ 0	$ 0

Amount of interest payable on debt, including, but not limited to, trade payables, classified as noncurrent.

No definition available.

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- Definition

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

+ References

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-Topic 942
-SubTopic 210
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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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Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current portion 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

Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

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Period Type:	instant

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