Prepaid Expenses (Tables)

3 Months Ended

Mar. 31, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

Prepaid expenses consist of the following:

	March 31,		December 31,
	2017		2016
Director compensation	$	86	$	215
Director and officer insurance		98		70
Legal retainer		25		25
Rent		25		17
Engineering, software licenses and other		13		10
Total prepaid expenses	$	247	$	337