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Revenue Recognition | 12 Months Ended
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Dec. 31, 2018
Revenue Recognition [Abstract] |
Revenue Recognition |
12. | Revenue Recognition
Our source of product revenue for the year ended December 31, 2018, consists of sales of HEPLISAV-B in the U.S. The following table summarizes balances and activity in each of the product revenue allowance and reserve categories for the year ended December 31, 2018 (in thousands):
|  | Chargebacks, discounts and other fees |  |  | Returns |  |  | Total |
Balance at December 31, 2017 |  | $ | - |  |  | $ | - |  |  | $ | - |
Provision related to current period sales |  |  | 4,012 |  |  |  | 570 |  |  |  | 4,582 |
Credit or payments made during the period |  |  | (2,276 | ) |  |  | (1 | ) |  |  | (2,277 | )
Balance at December 31, 2018 |  | $ | 1,736 |  |  | $ | 569 |  |  | $ | 2,305 |
At December 31, 2018, reserves for chargebacks and discounts totaling $1.3 million were recorded as reductions of accounts receivable while the remaining reserves balances totaling $1.0 million were recorded as accrued liabilities in the condensed consolidated balance sheets.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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