Investments (Tables)

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities

The following table summarizes our investments:

	September 30, 2023						December 31, 2022
$ in thousands	Amortized Cost		Unrealized Losses		Fair Value		Amortized Cost		Unrealized Losses		Fair Value
Corporate bonds	$	—	$	—	$	—	$	3,997	$	(22)	$	3,975
Commercial paper	990		(1)		989		10,837		(3)		10,834
U.S. treasury bills	27,285		(38)		27,247		82,979		(284)		82,695
Total investments	$	28,275	$	(39)	$	28,236	$	97,813	$	(309)	$	97,504