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Note 1 - Organization and Summary of Significant Accounting Policies - Accounts Receivable (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Accounts receivable | $ 330,001 | $ 277,831
Billed Revenues [Member] |  |
Accounts receivable | 115,469 | 101,175
Unbilled Revenues [Member] |  |
Accounts receivable | $ 214,532 | $ 176,656

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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 9 -URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4531-111522 + Details
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