Revenue by Product (Tables)

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, Revenue by Product

The following table presents a summary of total product sales by these products: 

	Three Months Ended June 30,					Six Months Ended June 30,
Product Sales by Product:	2020		2019			2020		2019
Bloxiverz	$	800	$	2,358		$	2,201	$	4,926
Vazculep	4,915		9,410			10,429		18,883
Akovaz	4,196		5,946			9,545		9,738
Other	180		(160		)	159		444
Total product sales	$	10,091	$	17,554		$	22,334	$	33,991