NOTE 6 — Stock-Based Compensation Plan (Tables)
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12 Months Ended |
Dec. 31, 2025 |
| Share-Based Payment Arrangement [Abstract] |
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| Schedule of employee service stock-based compensation, allocation of recognized period costs |
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Years Ended December 31, |
| Income Statement Classification | |
2025 | |
2024 |
| Cost of revenues | |
$ | 108,413 | | |
$ | 119,872 | |
| Research and development | |
$ | 212,465 | | |
$ | 318,258 | |
| Sales and marketing | |
$ | 192,869 | | |
$ | 283,672 | |
| General and administrative | |
$ | 155,451 | | |
$ | 332,494 | |
| Stock-based compensation expenses | |
$ | 669,198 | | |
$ | 1,054,296 | |
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| Stock options' weighted average assumptions and grant date fair values |
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Years Ended December 31, |
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2025 | |
2024 |
| Risk-free interest rate (%) | |
| 4.12 | % | |
| 4.24 | % |
| Dividend yield | |
| — | | |
| — | |
| Volatility factor | |
| 54.03 | % | |
| 106.88 | % |
| Expected option life (years) | |
| 10 | | |
| 3.41 | |
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| Activity of stock options exercised |
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Years Ended December 31, |
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2025 | |
2024 |
| Total intrinsic value of stock options exercised | |
$ | — | | |
$ | (23,688 | ) |
| Cash received from stock option exercises | |
$ | — | | |
$ | 23,750 | |
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| 2004 Plan outstanding and exercisable options by price range |
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| Options Outstanding | |
| Options Exercisable |
Range of Exercise Prices |
| Number of Options Outstanding | | |
| Weighted Average Remaining Life (Years) | | |
| Weighted Average Exercise Price | | |
| Number of Options Exercisable | | |
| Weighted Average Exercise Price | |
| $1.02 - $1.08 |
| 119,000 | | |
| 8.17 | | |
$ | 1.08 | | |
| 44,521 | | |
$ | 1.07 | |
| $1.1197 - $1.12 |
| 613,349 | | |
| 8.50 | | |
$ | 1.12 | | |
| 204,458 | | |
$ | 1.12 | |
| $1.90 - $2.27 |
| 110,825 | | |
| 2.08 | | |
$ | 1.99 | | |
| 110,825 | | |
$ | 1.99 | |
| $2.32 |
| 94,275 | | |
| 3.67 | | |
$ | 2.32 | | |
| 94,275 | | |
$ | 2.32 | |
| $2.45 - $2.52 |
| 19,000 | | |
| 3.08 | | |
$ | 2.48 | | |
| 19,000 | | |
$ | 2.48 | |
| $2.75 |
| 33,600 | | |
| 0.25 | | |
$ | 2.75 | | |
| 33,600 | | |
$ | 2.75 | |
| $2.93 - $2.95 |
| 28,051 | | |
| 2.75 | | |
$ | 2.93 | | |
| 28,051 | | |
$ | 2.93 | |
| $3.05 |
| 12,000 | | |
| 6.50 | | |
$ | 3.05 | | |
| 12,000 | | |
$ | 3.05 | |
| $3.73 - $3.88 |
| 17,000 | | |
| 0.92 | | |
$ | 3.81 | | |
| 17,000 | | |
$ | 3.81 | |
| $4.22 - $5.00 |
| 40,600 | | |
| 2.50 | | |
$ | 4.45 | | |
| 40,600 | | |
$ | 4.45 | |
| $8.58 |
| 45,000 | | |
| 5.33 | | |
$ | 8.58 | | |
| 45,000 | | |
$ | 8.58 | |
| $1.02 - $8.58 |
| 1,132,700 | | |
| 6.50 | | |
$ | 1.89 | | |
| 649,330 | | |
$ | 2.47 | |
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| Restricted Stock |
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Number of Restricted Stocks | |
Weighted Average Price Per Share |
| Unvested as of December 31, 2023 |
| 991,199 | | |
$ | 2.83 | |
| Granted |
| 506,000 | | |
$ | 1.11 | |
| Vested |
| (316,519 | ) | |
$ | 1.16 | |
| Forfeited |
| (101,840 | ) | |
$ | 2.18 | |
| Unvested as of December 31, 2024 |
| 1,078,840 | | |
$ | 0.98 | |
| Granted |
| 643,793 | | |
$ | 1.42 | |
| Vested |
| (477,715 | ) | |
$ | 2.00 | |
| Forfeited |
| (128,427 | ) | |
$ | 3.33 | |
| Unvested as December 31, 2025 |
| 1,116,491 | | |
$ | 1.14 | |
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