Stock-based Compensation

6 Months Ended

Jun. 30, 2025

Share-Based Payment Arrangement [Abstract]

Stock-based Compensation

Note 10. Stock-based Compensation

During the six-month periods ended June 30, 2025 and 2024, there was no stock-based compensation associated with stock options included in research and development expense.

There were no options exercised, forfeited or cancelled during the period. During the six-month periods ended June 30, 2025 and 2024 there were no options granted and 650,000 expired.

Options outstanding at June 30, 2025 consist of:

Date Issued	Number Outstanding		Number Exercisable		Exercise Price		Expiration Date
January 1, 2021		450,000		450,000	$	0.65	December 31, 2025
Total		450,000		450,000

During the quarter ended June 30, 2025, 150,000 outstanding options expired and 650,000 outstanding options expired during the six months ended June 30, 2025.

Warrants outstanding at June 30, 2025 consist of:

Date Issued	Number Outstanding		Number Exercisable		Exercise Price		Expiration Date
July 19, 2022		550,000		550,000	$	0.50	July 18, 2025
Total		550,000		550,000