Prepaid Expenses and Other Current Assets

6 Months Ended

Jun. 30, 2022

Prepaid Expenses And Other Current Assets [Abstract]

Prepaid expenses and other current assets

Note 5. Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets as of June 30, 2022 and December 31, 2021 were as follows:

	June 30,		December 31,
(in thousands)	2022		2021
Australia research and development credit receivable	$	2,149	$	1,564
Metals to be used in research and development		1,623		2,237
Other		1,422		404
Total prepaid expenses and other current assets	$	5,194	$	4,205