Note 6 - Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($) |
Dec. 31, 2025 |
Dec. 31, 2024 |
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|---|---|---|---|---|
| Accrued payroll expenses | $ 66,980 | $ 472,463 | ||
| Accrued interest expense | 739,775 | 981,293 | ||
| Accrued general and administrative expenses | 86,221 | 75,216 | ||
| Accrued commissions | 159,472 | 177,534 | ||
| Accrued liability for emission allowances | 942,604 | 67,915 | ||
| Other accrued expenses | [1] | 1,075,578 | 2,079,645 | |
| Total | $ 3,070,630 | $ 3,854,066 | ||
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| X | ||||||||||
- Definition Represents accrued general and administrative expenses. No definition available.
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| X | ||||||||||
- Definition Amount of expenses incurred but not yet paid related to emission allowances. No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for sales commissions. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- 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). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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