Other Current Assets (Tables)

3 Months Ended

Mar. 31, 2020

Other Current Assets Disclosure [Abstract]

Schedule of Other Current Assets [Table Text Block]

	As of  March 31,  2020		As of December 31, 2019
Prepaid expenses	$	197	$	234
Sales and use taxes	159		173
Other	180		141
Other current assets	$	536	$	548