Inventories	12 Months Ended
Dec. 31, 2022
Inventory Disclosure [Abstract]
Inventories	9. Inventories Inventories are comprised of Ameluz^®, Xepi^® and the BF-RhodoLED^® finished products. The provision related to BF-RhodoLED^® devices was $0.1 million for the year ended December 31, 2022, and negligible for the year ended December 31, 2021. The provision for Xepi^® inventory obsolescence was negligible for the year ended December 31, 2022 and $0.3 million for the year ended December 31, 2021. There was no provision relating to Ameluz in either year.

The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 330
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//330/tableOfContent

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