Customer, Supplier and Product Concentration (Tables)

3 Months Ended

Mar. 31, 2019

Schedules of Concentration of Risk, by Risk Factor

The following table sets forth the percentage of the Company's gross accounts receivable attributable to the Big 3 Wholesalers as of March 31, 2019 and December 31, 2018:



Big 3 Wholesalers combined:	March 31, 2019	December 31, 2018
Percentage of gross trade accounts receivable	86%	86%

The following table sets forth the percentage of the Company’s gross sales attributable to the Big 3 Wholesalers for the three month periods ended March 31, 2019 and 2018:



	Three Months Ended March 31,
Big 3 Wholesalers combined:	2019	2018
Percentage of gross sales	84%	83%

The following table sets forth the Company’s net revenues disaggregated by major customers for the three month periods ended March 31, 2019 and 2018 (dollar amounts in thousands):



	Three Months Ended March 31, 2019			Three Months Ended March 31, 2018
Disaggregation of net revenues by major customers	Net Revenue		Net Revenue %	Net Revenue		Net Revenue %
Amerisource	$	30,096	18.1%	$	37,955	20.6%
Cardinal	29,761		17.9%	27,189		14.8%
McKesson	37,752		22.8%	53,221		28.9%
Big 3 Wholesalers combined	97,609		58.8%	118,365		64.3%
All Others	68,262		41.2%	65,698		35.7%
Total Revenues	165,871		100.0%	184,063		100.0%