Stock Option Plans (Tables)

3 Months Ended

Mar. 31, 2024

Stock Option Plans

Schedule of stock option activity

		Options Outstanding
			Weighted ‑
	Shares		Average
	Available	Number of	Exercise
	for Grant	Options	Price
Balance at December 31, 2023	3,617,943	9,244,150	$	4.17
Additional shares authorized	1,961,000	—		—
Options granted	(400,000)	400,000		2.30
Options exercised	—	—		—
Options forfeited	28,750	(28,750)		2.08
Balance at March 31, 2024	5,207,693	9,615,400	$	4.10