Note 3 - Revenue From Contracts With Customers - Changes in Contract Assets and Liabilities (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2024 |
Mar. 31, 2024 |
Jun. 30, 2023 |
Mar. 31, 2023 |
Jun. 30, 2024 |
|
| Balance at December 31, 2023 | $ 85,035 | $ 114,540 | $ 127,091 | $ 182,756 | $ 114,540 |
| Contract liabilities added | 1,732 | 26,026 | |||
| Revenue recognized | (55,531) | (55,088) | (55,665) | (31,237) | |
| Balance at March 31, 2024 | $ 55,531 | $ 85,035 | $ 72,003 | $ 127,091 | $ 55,531 |
| X | ||||||||||
- Definition Additions in the period to the contract with customer, liability. No definition available.
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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. No definition available.
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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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