Note A - The Company and Summary of Significant Accounting Policies - Summary of Accounts Receivable (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Accounts receivable | $ 1,604,075 | $ 1,351,482 |
| Allowance for Credit Losses | (383,253) | (633,253) |
| Accounts receivable, net of allowances for Credit Losses | 1,220,822 | 718,229 |
| Balance | 633,253 | 1,005,785 |
| Charged to costs and expenses | 0 | 16,265 |
| Deductions from reserves | (250,000) | (388,797) |
| Balance | $ 383,253 | $ 633,253 |
| X | ||||||||||
- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| 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, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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