XML 33 R22.htm IDEA: XBRL DOCUMENT
v3.25.1

NOTE 6 — Stock-Based Compensation Plan (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract] |
Schedule of employee service stock-based compensation, allocation of recognized period costs |
|  | Years Ended December 31,
Income Statement Classification |  | 2024 |  | 2023
Cost of revenues |  | $ | 119,872 |  |  | $ | 137,116 |
Research and development |  | $ | 318,258 |  |  | $ | 358,632 |
Sales and marketing |  | $ | 283,672 |  |  | $ | 295,704 |
General and administrative |  | $ | 332,494 |  |  | $ | 364,930 |
Stock-based compensation expenses |  | $ | 1,054,296 |  |  | $ | 1,156,382 |
Stock options' weighted average assumptions and grant date fair values |
|  | Years Ended December 31,
|  | 2024 |  | 2023
Risk-free interest rate (%) |  |  | 4.24 | % |  |  | — |
Dividend yield |  |  | — |  |  |  | — |
Volatility factor |  |  | 106.88 | % |  |  | — |
Expected option life (years) |  |  | 3.41 |  |  |  | — |
Activity of stock options exercised |
|  | Years Ended December 31,
|  | 2024 |  | 2023
Total intrinsic value of stock options exercised |  | $ | (23,688 | ) |  | $ | (11,982 | )
Cash received from stock option exercises |  | $ | 23,750 |  |  | $ | 212,815 |
2004 Plan outstanding and exercisable options by price range |
|  | 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
$0.95 - $1.10 |  |  | 94,000 |  |  |  | 8.67 |  |  | $ | 1.08 |  |  |  | 94,000 |  |  | $ | 1.08 |
$1.12 - $1.25 |  |  | 613,349 |  |  |  | 9.50 |  |  | $ | 1.12 |  |  |  | 613,349 |  |  | $ | 1.12 |
$1.50 - $1.98 |  |  | 82,325 |  |  |  | 4.25 |  |  | $ | 1.90 |  |  |  | 82,325 |  |  | $ | 1.90 |
$2.00 - $2.27 |  |  | 33,500 |  |  |  | 0.25 |  |  | $ | 2.21 |  |  |  | 33,500 |  |  | $ | 2.21 |
$2.32 - $2.36 |  |  | 96,148 |  |  |  | 4.67 |  |  | $ | 2.32 |  |  |  | 96,148 |  |  | $ | 2.48 |
$2.40 - $2.71 |  |  | 19,000 |  |  |  | 4.08 |  |  | $ | 2.48 |  |  |  | 19,000 |  |  | $ | 3.85 |
$2.74 - $2.75 |  |  | 38,600 |  |  |  | 1.25 |  |  | $ | 2.75 |  |  |  | 38,600 |  |  | $ | 2.75 |
$2.82 - $2.95 |  |  | 38,551 |  |  |  | 4.42 |  |  | $ | 2.93 |  |  |  | 38,551 |  |  | $ | 2.93 |
$3.04 - $3.29 |  |  | 12,000 |  |  |  | 7.50 |  |  | $ | 3.05 |  |  |  | 12,000 |  |  | $ | 3.05 |
$3.45 - $3.88 |  |  | 17,000 |  |  |  | 1.92 |  |  | $ | 3.81 |  |  |  | 17,000 |  |  | $ | 3.81 |
$4.22 - $6.90 |  |  | 40,787 |  |  |  | 3.50 |  |  | $ | 4.45 |  |  |  | 40,787 |  |  | $ | 4.45 |
$7.20 - $33.75 |  |  | 45,000 |  |  |  | 6.33 |  |  | $ | 8.58 |  |  |  | 45,000 |  |  | $ | 8.58 |
$0.95 - $33.75 |  |  | 1,130,260 |  |  |  | 7.33 |  |  | $ | 2.86 |  |  |  | 1,130,260 |  |  | $ | 1.93 |
Restricted Stock |
| Number of Restricted Stocks |  | Weighted Average Price Per Share
Unvested as of December 31, 2022 |  | 844,976 |  |  | $ | 2.84 |
Granted |  | 463,720 |  |  | $ | 2.30 |
Vested |  | (286,062 | ) |  | $ | 2.02 |
Forfeited |  | (31,435 | ) |  | $ | 2.66 |
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 December 31, 2024 |  | 1,078,840 |  |  | $ | 0.98 |

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration