Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share-Based Payment Arrangement [Abstract]

Summary of Stock-Based Compensation Expense

Stock-Based Compensation Expense

Stock-based compensation expense recorded as research and development and general and administrative expenses, for employees, directors and non-employees during the three and six months ended June 30, 2022 and 2021 is as follows:

	THREE MONTHS ENDED JUNE 30,				SIX MONTHS ENDED JUNE 30,
	2022		2021		2022		2021
	($ in thousands)
Research and development	$	958	$	188	$	1,462	$	324
General and administrative		676		219		2,359		431
Total stock-based compensation expense	$	1,634	$	407	$	3,821	$	755