Prepaid Expenses And Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2021

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Prepaid Expenses and Other Assets

Prepaid expenses and other current assets consisted of the following as of December 31, 2021 and 2020:

	December 31,
	2021		2020
	(in thousands)
Accrued interest on short-term available-for-sale securities	$	816	$	612
Prepaid equipment service contracts	360		383
Prepaid external research and development and outside services	3,074		1,889
Prepaid software	624		736
Prepaid insurance	2,644		2,881
Prepaid rent and other	527		240
Total prepaid expenses and other current assets	$	8,045	$	6,741