Note 5 - Share-based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

	Options Outstanding			Exercise Price per share				Weighted Average Price per share		Aggregate intrinsic Value(1)
Balance, December 31, 2022		28,484,549		$0.12	–	0.43	$	0.19
Granted		1,320,498			$0.20		$	0.2
Balance, March 31, 2023		29,805,047		$0.12	–	0.43	$	0.19
Unvested		(4,073,761	)	$0.12	–	0.32	$	0.19
Vested, March 31, 2023		25,731,286		$0.12	–	0.43	$	0.19	$	678,000
Balance, December 31, 2021		23,186,142		$0.16	–	0.40	$	0.19
Granted		2,621,229		$0.12	–	0.23	$	0.23
Balance, March 31, 2022		25,807,371		$0.12	–	0.40	$	0.19

						Weighted
						Average		Aggregate
	Options		Exercise			Price per		intrinsic
	Outstanding		price per share			share		Value(1)
Balance, December 31, 2022		1,904,085	$0.28	–	0.69	$	0.56
Expired		–		–			–
Balance, March 31, 2023		1,904,085	$0.28	–	0.69	$	0.56	$	–
Balance, December 31, 2021		2,879,246	$0.23	–	0.94	$	0.49
Expired		–		–			–
Balance, March 31, 2022		2,879,246	$0.23	–	0.94	$	0.49

							Weighted
	Non-plan						average		Aggregate
	Options			Exercise			price per		intrinsic
	outstanding			price per share			share		value(1)
Balance, December 31, 2022		19,023,829		$0.12	–	0.83	$	0.39
Granted		48,804			0.20			0.20
Balance, March 31, 2023		19,072,633		$0.12	–	0.83	$	0.39
Unvested		(507,500	)		0.45			0.45
Vested, March 31, 2023		18,565,133		$0.12	–	0.83	$	0.38	$	88,000
Balance, December 31, 2021		20,119,207		$0.12	–	0.83	$	0.39
Granted		32,609			0.23			0.23
Balance, March 31, 2022		20,151,816		$0.12	–	0.83	$	0.39