REVENUE RECOGNITION (Details) $ in Thousands	3 Months Ended
Mar. 31, 2021 USD ($)
REVENUE RECOGNITION.
Gross product revenue	$ 906
Chargebacks and administrative fees	(75)
Government rebates and co-payment assistance	(37)
Trade discounts and allowances	(35)
Sales returns and allowances	(4)
Total gross-to-net adjustments	(151)
Net product revenue	755
Estimated amount of gross net accruals	$ 100

Amount of expense for administrative services provided to the limited liability company (LLC) or limited partnership (LP) by the managing member or general partner, affiliate of managing member or general partner, or affiliate of LLC or LP, for example, but not limited to, salaries, rent, or overhead costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Name:	us-gaap_AdministrativeFeesExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration