Note 5 - Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

Share-based Compensation, Stock Options, Activity [Table Text Block]

							Weighted
							Average
As of September 30 , 2018 :	Options		Exercise				Price per
	Outstanding		Price per share				share
Inception, June 22, 2018
Granted		790,087	$	0.25	–	0.43	$	0.34
Expired		—			—			—
Balance, September 30, 2018		790,087	$	0.25	–	0.43	$	0.34

							Weighted
							Average
As of September 30 , 2017 :	Options		Exercise				Price per
	Outstanding		Price per share				share
Balance, December 31, 2016		9,916,586	$	0.23	–	1.89	$	0.44
Granted		340,000		0.39	–	0.69		0.65
Expired		—			—			—
Balance, September 30, 2017		10,256,586	$	0.23	–	1.89	$	0.44

								Weighted Average
As of September 30 , 2018 :	Options			Exercise				Price per
	Outstanding			Price per share				share
Balance, December 31, 2017		9,831,586		$	0.23	–	1.89	$	0.44
Granted		—				—			—
Expired		(110,000	)		0.99	–	1.89		1.60
Balance, September 30, 2018		9,721,586		$	0.23	–	1.65	$	0.43

								Weighted
								Average
As of September 30 , 2017 :	Options			Exercise				Price per
	Outstanding			Price per share				share
Balance, December 31, 2016		20,148,766		$	0.18	–	1.00	$	0.43
Granted		6,828,872			0.43	–	0.67		0.46
Expired		(3,866,629	)			0.18			0.18
Exercised		(3,866,630	)			0.18			0.18
Balance, September 30, 2017		19,244,379		$	0.18	–	1.00	$	0.51

								Weighted
								Average
As of September 30 , 2018 :	Options			Exercise				Price per
	Outstanding			Price per share				share
Balance, December 31, 2017		20,018,408		$	0.25	–	1.00	$	0.51
Granted		1,211,527			0.23	–	0.43		0.26
Expired		(2,400,000	)			0.99			0.99
Balance, September 30, 2018		18,829,935		$	0.25	–	1.00	$	0.45

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2017								2018
	Non Plan				2007 Plan				Non Plan				2018 Plan
Risk free interest rate		2.29	-	2.40%		2.31	-	2.40%		2.43	–	2.91%			2.91%
Expected volatility		571	-	601%		578	-	601%		538	–	563%		538	–	548%
Expected dividend yield			—				—				—				—
Forfeiture rate			—				—				—				—
Expected life in years			7				7				7				7