Balance Sheet Details (Tables)

12 Months Ended

Dec. 31, 2021

Balance Sheet Details [Abstract]

Schedule of Prepaid Expenses

Prepaid expenses consist of the following (in thousands):

	December 31,
	2021		2020
Prepaid clinical and research expense	$	557	$	583
Prepaid manufacturing expenses (1)		4,188		513
Other prepaid expenses		478		707
	$	5,223	$	1,803

Summary of Property and Equipment

Property and equipment consist of the following (in thousands):

	December 31,
	2021			2020
Computer and office equipment	$	616		$	552
Scientific and laboratory equipment		4,383			5,270
Tenant improvements		1,701			1,701
		6,700			7,523
Less accumulated depreciation and amortization		(6,157	)		(6,624	)
	$	543		$	899

Summary of Accrued Expenses

Accrued expenses consist of the following (in thousands):

	December 31,
	2021		2020
Accrued salaries, wages and benefits	$	2,326	$	1,809
Accrued clinical studies costs	$	1,004	$	1,089
Other accrued expenses		672		674
	$	4,002	$	3,572