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Note 7 - Derivative Obligations (Tables)

9 Months Ended

Sep. 30, 2019

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

	Series A
	September 30, 2019	December 31, 2018
Market price of common stock	$6.63	$2.70
Expected volatility	93%	94%
Contractual term (years)	1.4	2.2
Discount rate	1.70%	2.48%
Dividend rate	0%	0%
Exercise price	$80.00	$80.00

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

	Derivative Obligation
	September 30, 2019		December 31, 2018
Balance	$	3,000	$	1,000
Level 1	$	--	$	--
Level 2	$	--	$	--
Level 3	$	3,000	$	1,000

Derivative Instruments, Gain (Loss) [Table Text Block]

	Amount
Balance – December 31, 2018	$	1,000
Change in fair value of derivative obligation		2,000
Balance – September 30, 2019	$	3,000

- Definition

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

+ References + Details