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Note 12 - Stockholders' Equity - Summary of Shares Issued (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Issuance of common stock |  | $ 500,000 | $ 200,000
Total cash received from stock issuances |  | 4,485,717 | 3,364,300
Share-based compensation |  | 175,493 | 299,839
Share-Based Payment Arrangement, Nonemployee [Member] |  |  |
Total cash received from stock issuances | [1] | 0 |
Share-Based Payment Arrangement, Employee [Member] |  |  |
Total cash received from stock issuances | [1] | $ 0 |
Common Stock [Member] |  |  |
Total, number (in shares) |  | 678,074 |
Total, value |  | $ 6,780 |
Common Stock [Member] | Share-Based Payment Arrangement, Nonemployee [Member] |  |  |
Share-based compensation (in shares) | [1] | 2,440 |
Share-based compensation | [1] | $ 24 |
Common Stock [Member] | Share-Based Payment Arrangement, Employee [Member] |  |  |
Share-based compensation (in shares) | [1] | 4,000 |
Share-based compensation | [1] | $ 40 |
Additional Paid-in Capital [Member] |  |  |
Issuance of common stock |  | 498,864 | 199,901
Share-based compensation |  | 175,428 | $ 299,699
Total, value |  | 5,154,430 |
Additional Paid-in Capital [Member] | Share-Based Payment Arrangement, Nonemployee [Member] |  |  |
Share-based compensation | [1] | 95,900 |
Additional Paid-in Capital [Member] | Share-Based Payment Arrangement, Employee [Member] |  |  |
Share-based compensation | [1] | 79,529 |
Tumim Stone Capital LLC [Member] |  |  |
Total cash received from stock issuances |  | $ 381,717 |
Tumim Stone Capital LLC [Member] | Common Stock [Member] |  |  |
Issuance of common stock (in shares) |  | 28,131 |
Issuance of common stock |  | $ 281 |
Tumim Stone Capital LLC [Member] | Additional Paid-in Capital [Member] |  |  |
Issuance of common stock |  | 381,436 |
Eighty-eight Investment LLC [Member] |  |  |
Total cash received from stock issuances |  | $ 495,000 |
Eighty-eight Investment LLC [Member] | Common Stock [Member] |  |  |
Issuance of common stock (in shares) |  | 100,000 |
Issuance of common stock |  | $ 1,000 |
Eighty-eight Investment LLC [Member] | Additional Paid-in Capital [Member] |  |  |
Issuance of common stock |  | 494,000 |
Yu Tian [Member] |  |  |
Total cash received from stock issuances |  | $ 120,000 |
Yu Tian [Member] | Common Stock [Member] |  |  |
Issuance of common stock (in shares) |  | 39,867 |
Issuance of common stock |  | $ 399 |
Yu Tian [Member] | Additional Paid-in Capital [Member] |  |  |
Issuance of common stock |  | 119,601 |
Armistice Capital [Member] |  |  |
Total cash received from stock issuances |  | $ 1,989,000 |
Armistice Capital [Member] | Common Stock [Member] |  |  |
Issuance of common stock (in shares) |  | 140,000 |
Issuance of common stock |  | $ 1,400 |
Armistice Capital [Member] | Additional Paid-in Capital [Member] |  |  |
Issuance of common stock |  | 1,987,600 |
QBSG Limited [Member] |  |  |
Total cash received from stock issuances |  | $ 0 |
QBSG Limited [Member] | Common Stock [Member] |  |  |
Issuance of common stock (in shares) |  | 113,636 |
Issuance of common stock |  | $ 1,136 |
QBSG Limited [Member] | Additional Paid-in Capital [Member] |  |  |
Issuance of common stock |  | 498,864 |
Aurous Vertex Limited [Member] |  |  |
Total cash received from stock issuances |  | $ 1,500,000 |
Aurous Vertex Limited [Member] | Common Stock [Member] |  |  |
Issuance of common stock (in shares) |  | 250,000 |
Issuance of common stock |  | $ 2,500 |
Aurous Vertex Limited [Member] | Additional Paid-in Capital [Member] |  |  |
Issuance of common stock |  | $ 1,497,500 |
[1] | see Note 13 – Stock-Based Compensation – Restricted Stock

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