v3.19.3

Note 10 - Stock Options (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2019

Dec. 31, 2018

Notes Tables

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

		Number of Options		Weighted Average Exercise Price			Weighted Average Remaining Life In Years		Intrinsic Value
Outstanding, December 31, 2018		690		$	2.76
Alliqua options assumed in Merger		58		289.76
Exercised		—		—
Cancelled		—		—
Outstanding, June 30, 2019		748		$	24.95		6.2		$	188
Exercisable, June 30, 2019		530		$	33.93		5.7		$	188

				Outstanding Options
									Weighted-
						Weighted-			Average
						Average			Remaining
		Shares				Exercise			Contractual		Aggregate
		Available		Options		Price			Life		Intrinsic
		For Grant		Outstanding		Per Share			(in years)		Value(a)
Balance at December 31, 2016		5		19,222		$	0.10		9.4
Balance at December 31, 2017		5		19,222		$	0.10		8.4		$	6,639
Balance at December 31, 2018		5		19,222		$	0.10		7.4		$	6,956
Vested and expected to vest as of December 31, 2018				19,222		$	0.10		7.4		$	6,956
Exercisable at December 31, 2018				11,146		$	0.09		7.4		$	4,119

​

(a) The aggregate intrinsic value is calculated as the difference between the stock option exercise price and the estimated fair value of the Company’s common stock of $0.46 and $0.44 per share as of December 31, 2018 and 2017.

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

		Options Outstanding				Options Exercisable
Range of Exercise Price		Weighted Average Exercise Price		Outstanding Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Life In Years		Exercisable Number of Options
$1.11 — $1.38		$ 1.11		73		$ 1.11		2.5		73
1.39 — 3.05		1.39		37		1.39		3.2		37
3.06 — 20.99		3.06		580		3.06		7.5		362
21.00 — 656.40		289.81		58		289.81		0.7		58
		$         24.95		748		$ 24.76		5.7		530

X

- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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