NIH Contract (Tables)

12 Months Ended

Dec. 31, 2021

Research and Development [Abstract]

Research and Development Arrangement, Contract to Perform for Others

The following tables summarize the activity under the NIH Contract through December 31, 2021 and 2020 (in thousands):

	Year Ended December 31,
	2021		2020
Cumulative cash receipts from milestones achieved	$	34,016	$	25,436
Cumulative amounts applied against operating costs (excluding depreciation)	(4,522)		(1,488)
Cumulative amounts applied against depreciation expense for assets placed in service	(703)		—
Cumulative amounts recognized as non-operating income	(7,140)		—
Total deferred grant income	$	21,651	$	23,948
Assets placed in service, gross	$	16,890	$	—
Construction-in-progress	3,909		9,652
Cumulative amounts applied against depreciation expense	(703)		—
Carrying value of property and equipment, net	20,096		9,652
Estimated future operating costs, excluding depreciation	—		2,912
Estimated future capital expenditures	1,555		11,384
Total deferred grant income	$	21,651	$	23,948
Deferred grant income, current	$	3,535	$	2,912
Deferred grant income, non-current	18,116		21,036
Total deferred grant income	$	21,651	$	23,948