Stock-based Compensation

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Stock-based Compensation

Note 10. Stock-based Compensation

During the six-month periods ended June 30, 2024 and 2023, there was $0 and $6,000, respectively, in 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, 2024 and 2023 there were no options granted.

As of June 30, 2024, all compensation related to 1,100,000 outstanding options has been recognized. The options were expensed over their respective vesting periods.

Options outstanding at June 30, 2024 consist of:

Date Issued	Number Outstanding		Number Exercisable		Exercise Price		Expiration Date
March 12, 2020		500,000		500,000	$	0.40	March 12, 2025
June 27, 2020		150,000		150,000	$	0.40	June 27, 2025
January 1, 2021		450,000		450,000	$	0.65	December 31, 2025
Total		1,100,000		1,100,000

Warrants outstanding at June 30, 2024 consist of:

Date Issued	Number Outstanding		Number Exercisable		Exercise Price		Expiration Date
August 10, 2021		930,000		930,000	$	1.25	August 9, 2024
July 19, 2022		550,000		550,000	$	0.50	July 18, 2025
Total		1,480,000		1,480,000

During the six months ended June 30, 2024, 14,854 outstanding warrants expired.