Note 7 - Embedded Derivatives Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Defined Benefit Plan, Assumptions [Table Text Block]

	March 31,			January 10,			December 31,
	2020			2020			2019
Stock price	$	0.82		$	2.27		$	2.31
Conversion Rate per $1,000		409.50			409.50			67.95
Conversion Price	$	2.44		$	2.44		$	14.72
Maturity date	December 31, 2020			December 31, 2020			March 15, 2020
Risk-free interest rate		0.16	%		1.52	%		1.52	%
Estimated stock volatility		70	%		40	%		60	%
Estimated credit spread		40	%		36	%		27	%