Note 5 - Receivables (Details Textual) - USD ($) |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|
| Accounts Receivable, after Allowance for Credit Loss, Total | $ 1,629,559 | $ 1,664,862 | $ 1,442,231 |
| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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