Note 6 - Stock-Based Compensation Expense |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2025 | |||
| Notes to Financial Statements | |||
| Share-Based Payment Arrangement [Text Block] |
Stock-based compensation expense related to stock options is recognized on a straight-line basis over the requisite service period for the award and is allocated to research and development expense or general and administrative expense based upon the classification of the individual to whom the award is granted. Stock-based compensation expense related to stock option grants was $292,740 and $585,484 during the three-month and six-month periods ended June 30, 2025, respectively, as compared to $101,640 and $205,209, respectively, during the same periods of 2024. As of June 30, 2025, there is $1,894,027 of unrecognized compensation expense that we expect to recognize over a weighted-average period of 2.3 years.
We occasionally issue shares of our restricted common stock for consulting and other services and recognize the related expense over the terms of the related agreements. During the three-month and six-month periods ended June 30, 2024 we recorded stock-based compensation expense of $-0- and $54,167, respectively, associated with common stock issued for consulting services. such expense was recorded during the 2025 periods.
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