Business concentrations

3 Months Ended

Mar. 31, 2021

Risks and Uncertainties [Abstract]

Business concentrations

16. Business concentrations

We sell our products to wholesale distributors, specialty pharmacies, specialty distributors, and chain drug stores that generally sell products to retail pharmacies, hospitals, and other institutional customers.

Customers with product revenue equal to or greater than 10% of our total revenue for the periods indicated were as follows:

	Three Months Ended March 31,
	2021	2020
Customer A	13%	26%
Customer B	18%	18%
Customer C	22%	15%
Customer D	*	10%

* Less than 10% of total product revenue

Customers that accounted for 10% or greater of our accounts receivable as of the periods indicated were as follows:

	March 31, 2021	December 31, 2020
Customer A	14%	17%
Customer B	20%	19%
Customer C	33%	25%
Customer D	*	11%

* Balance was less than 10% of total accounts receivable

We rely on third parties for the manufacture and supply of our products, as well as third-party logistics providers. In instances where these parties fail to perform their obligations, we may be unable to find alternatives suppliers or satisfactorily deliver our products to our customers on time, if at all.

Vendors with product purchases equal to or greater than 10% of our total purchases for the periods indicated were as follows:

	Three Months Ended March 31,
	2021	2020
Catalent	29%	24%
Vendor A	33%	28%
Vendor B	32%	32%
Vendor C	*	13%

* Less than 10% of total product purchases

Vendors that accounted for 10% or greater of our accounts payable as of the periods indicated were as follows:

	March 31, 2021	December 31, 2020
Vendor D	19%	*
Vendor E	*	17%
Vendor F	*	16%
Vendor G	*	10%

* Balance was less than 10% of total accounts payable