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Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2025

Disaggregation Of Revenue [Line Items]

Summary of Disaggregation of Revenues

The following table disaggregates our product revenue, net by product and geographic region and disaggregates our other revenues by geographic region (in thousands):

			Three Months Ended March 31, 2025																		Three Months Ended March 31, 2024
			U.S.						Non U.S.						Total						U.S.						Non U.S.						Total
Product revenue, net
HEPLISAV-B			$	64,959					$	-					$	64,959					$	46,699					$	1,146					$	47,845
Total product revenue, net			64,959						-						64,959						46,699						1,146						47,845
Other revenue			2,847						358						3,205						2,802						143						2,945
Total revenues			$	67,806					$	358					$	68,164					$	49,501					$	1,289					$	50,790

HEPLISAV-B

Disaggregation Of Revenue [Line Items]

Schedule of Revenues from Major Customers

The following table summarizes HEPLISAV-B product revenue from each of our three largest customers (as a percentage of total HEPLISAV-B net product revenue):

			Three Months Ended March 31,
			2025						2024
Largest customer			31		%				27		%
Second largest customer			20		%				19		%
Third largest customer			18		%				18		%

Summary of Product Revenue Allowance and Reserve Categories

The following table summarizes balances and activities in HEPLISAV-B product revenue allowance and reserve categories for the three months ended March 31, 2025 (in thousands):

			Balance at Beginning of Period						Provisions related to current period sales						Credit or payments made during the period						Adjustments (3)						Balance at End of Period
Three months ended March 31, 2025:
Accounts receivable reserves (1)			$	9,317					$	19,695					$	(19,034)					$	21					$	9,999
Revenue reserve accruals (2)			$	31,479					$	12,485					$	(13,420)					$	(4,570)					$	25,974

(1)Reserves are for chargebacks, discounts and other fees.

(2)Accruals are for returns, rebates and other fees.

(3)Adjustments for $4.6 million in connection to revenue reserve accruals primarily result from a change in estimate for product returns.

CpG 1018 adjuvant

Disaggregation Of Revenue [Line Items]

Summarizes balances and activities in our contract asset account

The following table summarizes balances and activities in our contract asset account (in thousands):

			Balance at Beginning of Period						Additions						Subtractions						Balance at End of Period
Three months ended March 31, 2025
Contract asset, included in other current assets (1)			$	351					$	2,847					$	(1,613)					$	1,585
Contract asset, included in other assets (long term) (2)			$	71,307					$	—					$	(10,970)					$	60,337

(1)The $1.6 million of contract asset is derived from our agreement with the DoD.

(2)The Clover contract asset was included in non-current assets to reflect the timing of expected long term demand for CpG 1018 adjuvant for Clover Product. During the three months ended March 31, 2025, we recorded an allowance for doubtful accounts of approximately $11.0 million relating to the contract asset recognized for Clover. See Note 6 for further discussion.

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