Other Current Assets (Tables)

6 Months Ended

Jun. 30, 2017

Other Current Assets Disclosure [Abstract]

Schedule of Other Current Assets [Table Text Block]

	As of June 30, 2017		As of December 31, 2016
Sales and use taxes	$	430	$	153
Prepaid expenses	204		212
Other	203		154
Other current assets	$	837	$	519