Note 5 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2019

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)
Inception, June 22, 2018		—
Granted		1,318,517		$0.22	–	0.43	$	0.30
Expired		—			—			—
Balance, December 31, 2018		1,318,517		$0.22	–	0.43	$	0.30
Granted		7,895,839		$0.16	–	0.40	$	0.25
Balance, December 31, 2019		9,214,356		$0.16	–	0.43	$	0.25
Non-vested		(4,097,996	)	$0.17	–	0.45	$	0.29
Vested, December 31, 2019		5,116,360		$0.16	–	0.45	$	0.39	$	97,000

	Non-plan Options outstanding			Exercise   price per share			Weighted a verage p rice per share		Aggregate intrinsic value (1)
Balance, December 31, 2017		20,018,408		$0.25	–	1.00	$	0.51		--
Granted		1,701,088		0.23	–	0.43		0.26
Expired		(2,400,000	)		0.99			0.99
Balance, December 31, 2018		19,319,496		0.23	–	1.00		0.43		--
Granted		1,226,586		0.16	–	0.32		0.21
Expired		(941,975	)	0.45	–	0.55		0.52
Balance, December 31, 2019		19,604,107		$0.16	–	1.00	$	0.41
Unvested		(3,378,472	)		0.45			0.45
Vested and outstanding, December 31, 2019		16,225,635		$0.23	–	1.00	$	0.43	$	30,000

The 2007 Equity Incentive Plan [Member]

Notes Tables

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

							Weighted
							Average		Aggregate
	Options			Exercise			Price per		intrinsic
	Outstanding			p rice per share			share		Value (1)
Balance, December 31, 2017		9,831,586		$0.22	–	1.89	$	0.44
Expired		(140,000	)	0.35	–	1.89		1.41
Balance, December 31, 2018		9,691,586		0.22	–	0.94		0.43
Expired		(922,135	)	0.45	–	0.55		0.49
Balance, December 31, 2019		8,769,451		$0.23	–	0.94	$	0.43	$	--