Prepaid Expenses

6 Months Ended

Jun. 30, 2021

Prepaid Expenses [Abstract]

Prepaid Expenses

6. Prepaid Expenses

Prepaid expenses consist of the following (in thousands):

	June 30,		December 31,
	2021		2020
Prepaid services	$	561	$	408
Prepaid bonds for German statutory costs		-		142
Prepaid insurance		41		21
Prepaid licenses, software tools and support		30		11
Other prepaid expenses		4		17
	$	636	$	599

Prepaid services at June 30, 2021 and December 31, 2020 include approximately $0.5 million and $0.1 million, respectively of consulting services paid in shares of stock or warrants to purchase shares of stock in the future.