Revenue (Tables)

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

We disaggregate revenue into the following revenue categories:

	Three Months Ended March 31,
$ in thousands	2022		2021
Project revenue	$	1,991	$	—
Services revenue	53		516
Revenue from contracts with customers	2,044		516
Grant revenue	1,495		—
Total revenue	$	3,539	$	516