Stock Options and Warrants (Tables)

3 Months Ended

Mar. 31, 2023

Stock Options and Warrants

Stock option/warrant activity

	First Quarter 2023						First Quarter 2022
	Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value as  of March 31, 2023		Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value as of March 31, 2022
Options outstanding at beginning of year		1,736,000	$	0.12				1,937,000	$	0.13
Granted		0	NA					0	NA
Exercised		0	NA					0	NA
Cancelled/expired		46,000	$	0.26				0	NA
Options outstanding at end of quarter		1,690,000	$	0.12	$	0		1,937,000	$	0.13	$	0
Options exercisable at end of quarter		1,690,000	$	0.12				1,937,000	$	0.13