Basis of Presentation and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Schedule of customers representing greater than 10% of revenue balances

The following table sets forth customers who represented 10% or more of our total revenues for the three and six months ended June 30, 2019 and 2018:

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
McKesson Corporation	35	%	26	%	36	%	27	%
AmerisourceBergen Drug Corporation	28	%	27	%	27	%	27	%
Cardinal Health	11	%	<10%		12	%	<10%