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Revenue Recognition (Tables) | 3 Months Ended
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Mar. 31, 2022
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 |  |  | Three Months Ended |
|  | March 31, 2022 |  |  | March 31, 2021 |
|  | U.S. |  |  | Non U.S. |  |  | Total |  |  | U.S. |  |  | Non U.S. |  |  | Total |
Product revenue, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
HEPLISAV-B |  | $ | 20,810 |  |  | $ | - |  |  | $ | 20,810 |  |  | $ | 8,303 |  |  | $ | - |  |  | $ | 8,303 |
CpG 1018 |  |  | - |  |  |  | 91,517 |  |  |  | 91,517 |  |  |  | - |  |  |  | 74,582 |  |  |  | 74,582 |
Total product revenue, net |  | $ | 20,810 |  |  | $ | 91,517 |  |  | $ | 112,327 |  |  | $ | 8,303 |  |  | $ | 74,582 |  |  | $ | 82,885 |
Other revenue |  |  | 1,606 |  |  |  | 59 |  |  |  | 1,665 |  |  |  | - |  |  |  | 450 |  |  |  | 450 |
Total revenues |  | $ | 22,416 |  |  | $ | 91,576 |  |  | $ | 113,992 |  |  | $ | 8,303 |  |  | $ | 75,032 |  |  | $ | 83,335 |
Summary of Deferred Revenue | The following table summarizes balances and activities in our deferred revenue accounts for the three months ended March 31, 2022 (in thousands):
|  | Balance at Beginning of Period |  |  | Additions (1) |  |  | Subtractions (2) |  |  | Revenue recognized in the current period included in deferred revenue balance at the beginning of the period |  |  | Balance at End of Period |
Three months ended March 31, 2022: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue |  | $ | 349,864 |  |  | $ | 368 |  |  | $ | - |  |  | $ | (37,029 | ) |  | $ | 313,203 |
Long-term deferred revenue |  |  | 5,385 |  |  |  | 6,582 |  |  |  | (11,967 | ) |  |  | - |  |  |  | - |
(1) Additions are primarily payments received or invoices issued before we satisfy our performance obligations. Subtractions are primarily revenues recognized in the period included in deferred revenue during the period and reclassification from long-term deferred revenue to accrued liabilities.
HEPLISAV-B |
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, |  |
|  | 2022 |  |  | 2021 |  |
Largest Customer |  |  | 25 | % |  |  | 28 | % |
Second largest Customer |  |  | 20 | % |  |  | 26 | % |
Third largest Customer |  |  | 16 | % |  |  | 21 | % |
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, 2022 (in thousands):
|  | Balance at Beginning of Period |  |  | Provisions related to current period sales |  |  | Credit or payments made during the period |  |  | Balance at End of Period |
Three months ended March 31, 2022: |  |  |  |  |  |  |  |  |  |  |  |
Accounts receivable reserves(1) |  | $ | 3,823 |  |  | $ | 5,807 |  |  | $ | (4,698 | ) |  | $ | 4,932 |
Revenue reserve accruals(2) |  |  | 8,253 |  |  |  | 4,273 |  |  |  | (4,893 | ) |  |  | 7,633 |
(1) Reserves are for chargebacks, discounts and other fees. (2) Accruals are for returns, rebates and other fees.
CpG 1018 |
Schedule of Revenues from Major Customers | The following table summarizes CpG 1018 product revenue from each of our three largest collaboration partners (as a percentage of total CpG 1018 adjuvant net product revenue):
|  | Three Months Ended |  |
|  | March 31, |  |
|  | 2022 |  |  | 2021 |  |
Largest collaboration partner |  |  | 74 | % |  |  | 87 | % |
Second largest collaboration partner |  |  | 24 | % |  |  | 9 | % |
Third largest collaboration partner |  |  | 2 | % |  |  | 2 | % |
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 (1) |  |  | Subtractions |  |  | Balance at End of Period |
Three months ended March 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Contract asset |  | $ | 62,525 |  |  | $ | 8,817 |  |  | $ | - |  |  | $ | 71,342 |

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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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