Convertible Note (Tables)

3 Months Ended

Mar. 31, 2019

Notes to Financial Statements [Abstract]

Schedule of Capital Units [Table Text Block]

		Gross proceeds		Transaction costs		Net proceeds
Common stock	$	1,627	$	167	$	1,460
Convertible notes		1,086		111		975
Warrants		487		50		437
	$	3,200	$	328	$	2,872

Schedule of Components of the Convertible Notes [Table Text Block]

		March 31,		December 31,
		2019		2018
Attributed value of net proceeds to convertible notes	$	975	$	975
Accretion		139		98
Convertible note	$	1,114	$	1,073