Note 11 - Income Taxes (Details Textual) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Effective Income Tax Rate Reconciliation, State and Local Jurisdiction, Contribution Greater than 50 Percent, Tax Effect [Extensible Enumeration] | State and Local Jurisdiction [Member] | |
| Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | $ (567,000) | $ (809,000) |
| Deferred Tax Assets, Valuation Allowance, Percent | 100.00% | 100.00% |
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | $ 563,440 | |
| Domestic Tax Jurisdiction [Member] | ||
| Operating Loss Carryforwards, Total | 25,820,000 | |
| Operating Loss Carryforwards, Not Subject to Expiration | 902,000 | |
| Operating Loss Carryforwards, Subject to Expiration | 24,918,000 | |
| State and Local Jurisdiction [Member] | ||
| Operating Loss Carryforwards, Total | 8,098,000 | |
| Foreign Tax Jurisdiction [Member] | ||
| Operating Loss Carryforwards, Total | 1,613,000 | |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | $ 13,818 | $ 37,102 |