Prepaid Expenses

3 Months Ended

Mar. 31, 2019

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

Prepaid Expenses

Note 5 - Prepaid Expenses

Prepaid expenses consist of the following:

	March 31,		December 31,
	2019		2018
Director compensation	$	50	$	100
Director and officer insurance		146		121
NASDAQ fees		41
Legal retainer		25		25
Marketing programs and conferences		50		53
Professional services retainer		12		8
Rent		19		19
Equipment service deposits		2		3
Engineering, software licenses and other		—		13
Total prepaid expenses	$	345	$	342