Note 8 - Related Party Transactions (Details Textual) - USD ($) |
3 Months Ended | |||
|---|---|---|---|---|
Oct. 01, 2025 |
Apr. 18, 2024 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Resource Plus, Inc [Member] | ||||
| Business Combination, Consideration Transferred, Liabilities Incurred | $ 3,000,000 | |||
| Resource Plus Acquisition Note [Member] | ||||
| Business Combination, Consideration Transferred, Liabilities Incurred | 2,700,000 | |||
| Payments to Acquire Interest in Joint Venture | $ 1,000,000 | |||
| Long-Term Debt, Gross | $ 2,000,000 | |||
| Resource Plus Acquisition Note [Member] | Debt Instrument, Redemption, Period One [Member] | ||||
| Payments to Acquire Interest in Joint Venture | $ 300,000 | |||
| William Bartels [Member] | William H. Bartels Independent Contractor Agreement [Member] | ||||
| Related Party Transaction, Amounts of Transaction, Monthly | $ 10,000 | |||
| WB Marketing, Inc [Member] | Service Fees [Member] | ||||
| Related Party Transaction, Amounts of Transaction | $ 229,000 | |||