| Schedule of revenues disaggregated by category |
Revenues disaggregated by category were as follows (in thousands):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Year Ended December 31, |
|
|
|
2020 |
|
2019 |
|
2018 |
Product sales: |
|
|
|
|
|
|
|
|
|
|
Gross product sales |
|
|
$ |
76,470 |
|
$ |
53,082 |
|
$ |
16,953 |
Discounts and allowances |
|
|
|
(14,774) |
|
|
(9,310) |
|
|
(3,006) |
Product sales, net |
|
|
$ |
61,696 |
|
$ |
43,772 |
|
$ |
13,947 |
|
|
|
|
|
|
|
|
|
|
|
Revenues from collaborations: |
|
|
|
|
|
|
|
|
|
|
License revenues |
|
|
|
40,358 |
|
$ |
8,696 |
|
|
30,562 |
Development milestones |
|
|
|
2,100 |
|
|
5,500 |
|
|
— |
Research and development services and others |
|
|
|
4,467 |
|
|
1,320 |
|
|
— |
Total revenues from collaborations |
|
|
|
46,925 |
|
|
15,516 |
|
|
30,562 |
Total revenues |
|
|
$ |
108,621 |
|
$ |
59,288 |
|
$ |
44,509 |
|
| Schedule of product revenue allowance and reserve categories |
The following tables summarize the activities in chargebacks, discounts and fees, government and other rebates and returns during the years ended December 31, 2020 and 2019 (in thousands):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Chargebacks, |
|
Government |
|
|
|
|
|
|
Discounts and |
|
and Other |
|
|
|
|
|
|
Fees |
|
Rebates |
|
Returns |
|
Total |
Balance at January 1, 2020 |
|
$ |
1,293 |
|
$ |
1,801 |
|
$ |
238 |
|
$ |
3,332 |
Provision related to current period sales |
|
|
8,149 |
|
|
4,231 |
|
|
950 |
|
|
13,330 |
Adjustment related to prior period sales |
|
|
(75) |
|
|
(490) |
|
|
565 |
|
|
— |
Credit or payments made during the period |
|
|
(6,906) |
|
|
(3,427) |
|
|
(264) |
|
|
(10,597) |
Balance at December 31, 2020 |
|
$ |
2,461 |
|
$ |
2,115 |
|
$ |
1,489 |
|
$ |
6,065 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Chargebacks, |
|
Government |
|
|
|
|
|
|
|
|
Discounts and |
|
and Other |
|
|
|
|
|
|
|
|
Fees |
|
Rebates |
|
Returns |
|
Total |
Balance at January 1, 2019 |
|
$ |
623 |
|
$ |
843 |
|
$ |
170 |
|
$ |
1,636 |
Provision related to current period sales |
|
|
5,170 |
|
|
2,864 |
|
|
99 |
|
|
8,133 |
Credit or payments made during the period |
|
|
(4,500) |
|
|
(1,906) |
|
|
(31) |
|
|
(6,437) |
Balance at December 31, 2019 |
|
$ |
1,293 |
|
$ |
1,801 |
|
$ |
238 |
|
$ |
3,332 |
|