Prepaid Expense and Other Current Assets

12 Months Ended

Dec. 31, 2023

Prepaid Expense and Other Assets, Current [Abstract]

Prepaid Expenses and Other Current Assets

4. Prepaid Expenses and Other Current Assets

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

	December 31, 2023		December 31, 2022
Research and development	$	1,563	$	6,670
Construction related prepaid assets		—		3,769
Other receivables		1,137		15
Interest receivable		348		—
Business insurance		122		133
Other		797		613
Total	$	3,967	$	11,200