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REVENUE RECOGNITION (Tables) | 9 Months Ended
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Sep. 30, 2021
REVENUE RECOGNITION. |
Reconciliation of gross product sales to net product sales by each significant category of gross-to-net adjustments | ​
​ | ​ | ​ | ​ | ​ | ​
(in thousands) | ​ | ​ | ​ | ​ | ​
​ | Three months ended | ​ | Nine months ended
​ | September 30, 2021 | ​ | September 30, 2021
Gross product revenue | $ | 2,528 | ​ | $ | 5,167
Gross-to-net adjustments: | ​ | ​ | ​ | ​ | ​
Chargebacks and administrative fees | ​ | (292) | ​ | ​ | (487)
Trade discounts and allowances | ​ | (128) | ​ | ​ | (222)
Government rebates and co-payment assistance | ​ | (103) | ​ | ​ | (179)
Sales returns and allowances | ​ | (13) | ​ | ​ | (25)
Total gross-to-net adjustments(1) | $ | (536) | ​ | $ | (913)
Net product revenue | $ | 1,992 | ​ | $ | 4,254

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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