Balance Sheet Components (Tables)

6 Months Ended

Jun. 30, 2023

Balance Sheet Components [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following (in thousands):

	June 30, 2023		December 31, 2022
Prepaid expenses	$	278	$	223
Prepaid insurance		300		977
Prepaid research and development expenses		262		1,088
Australia research and development refundable tax credit		—		1,003
Other current assets		143		276
Total prepaid expenses and other current assets	$	983	$	3,567

Schedule of Assets Held for Sale

Assets held for sale consist of the following (in thousands):

	June 30, 2023		December 31, 2022
Assets held for sale		94		—
Total assets held for sale	$	94	$	—

Schedule of Property and Equipment, Net

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

	June 30, 2023			December 31, 2022
Computer equipment	$	18		$	18
Lab equipment		—			415
Finance lease right of use assets		—			124
Leasehold improvement		—			21
Less: accumulated amortization and depreciation		(12	)		(185	)
Property and equipment, net	$	6		$	393

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

	June 30, 2023		December 31, 2022
Personnel expenses	$	736	$	1,130
Professional fees		548		234
Research and development expenses		85		497
Current portion of operating lease liabilities		147		377
Current portion of finance lease liability		—		76
Other		83		185
Total accrued expenses and other current liabilities	$	1,599	$	2,499

Summary of Accrued Severance and Related Expenses

Below is the severance accrual activity related to a cost reduction program during the period ended June 30, 2023 (in thousands):

	For the Six Months Ended June 30,
	2023
Beginning accrued severance	$	—
Incurred during the period		268
Severance paid during the period		(268	)
Ending accrued severance	$	—