Note 3 - Revenue From Contracts With Customers (Details Textual) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Contract with Customer, Liability | $ 900,500 | $ 635,100 |
| Contract with Customer, Liability, Revenue Recognized | $ 193,000 | $ 200,000 |
| Minimum [Member] | ||
| Capitalized Contract Cost, Amortization Period (Year) | 12 years | |
| Maximum [Member] | ||
| Capitalized Contract Cost, Amortization Period (Year) | 60 years | |
| X | ||||||||||
- Definition Amortization period of cost capitalized in obtaining or fulfilling contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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