Collaboration and Licensing Agreements (Tables)

3 Months Ended

Mar. 31, 2023

Collaboration and Licensing Agreements

Schedule of Deferred Revenue Balances

The following tables present changes in our current and non-current deferred revenue balances during the reporting period, which are all attributable to the 2017 Kyowa Kirin Agreement (in thousands):

Deferred revenue - current	2023		2022
Balance at January 1,	$	4,211	$	—
Increases due to amounts reclassified from non-current, to be recognized in the next twelve months	809
Increases to amounts invoiced, for which cash has not yet been received	525		—
Balance at March 31,	$	5,545	$	—

Deferred revenue - non-current	2023		2022
Balance at January 1,	$	9,025	$	4,727
Increases to amounts invoiced, for which cash has not yet been received	3,282		3,829
Increase due to unbilled prepayments recorded during the period	—		7
Decreases due to amounts reclassified as current, to be recognized in the next twelve months	(809)		—
Balance at March 31,	$	11,498	$	8,563