Prepaid Expenses

9 Months Ended

Sep. 30, 2020

Prepaid Expenses [Abstract]

Prepaid Expenses

6.  Prepaid Expenses

Prepaid expenses consist of the following (in thousands):

	September 30,		December 31,
	2020		2019
Prepaid services	$	453	$	221
Prepaid bonds for German statutory costs		136		188
Prepaid insurance		44		62
Prepaid licenses, software tools and support		11		17
Other prepaid expenses		16		17
	$	660	$	505

Prepaid services include approximately $0.2 million and $0.1 million of consulting services paid in shares of stock or warrants to purchase shares of stock in the future at September 30, 2020, and December 31, 2019, respectively.