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Note 1 - Organization and Summary of Significant Accounting Policies - Accounts Receivable (Details) - USD ($) | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts receivable | $ 221,719 | $ 237,027
Billed Revenues [Member] |  |
Accounts receivable | 173,524 | 173,993
Unbilled Revenues [Member] |  |
Accounts receivable | $ 48,195 | $ 63,034

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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/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
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Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis=us-gaap_UnbilledRevenuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |