Summary of Quarterly Consolidated Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Summary of Unaudited Quarterly Results of Operations

The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2020 and 2019:

	2020
	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
	(In thousands, except per share amounts)
Revenues:
Net product sales	$	25,400		$	22,668		$	19,965		$	20,605
Cost of product sales		(10,622	)		(9,005	)		(7,170	)		(9,392	)
Gross Profit		14,778			13,663			12,795			11,213
Operating expenses:
Research and development		36,894			44,004			49,182			44,453
General and administrative		10,422			9,819			9,482			12,503
Sales and marketing		20,196			15,589			12,515			15,553
Loss from operations		(52,734	)		(55,749	)		(58,384	)		(61,296	)
Other income (expense), net		1,155			559			156			(985	)
Net loss	$	(51,579	)	$	(55,190	)	$	(58,228	)	$	(62,281	)
Basic and diluted net loss per share	$	(0.57	)	$	(0.61	)	$	(0.64	)	$	(0.68	)

	2019
	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
	(In thousands, except per share amounts)
Revenues:
Net product sales	$	31,602		$	36,659		$	42,624		$	35,083
Cost of product sales		(14,962	)		(13,588	)		(17,195	)		(15,874	)
Gross Profit		16,640			23,071			25,429			19,209
Operating expenses:
Research and development		42,972			41,425			34,708			48,277
General and administrative		9,648			9,778			8,597			9,874
Sales and marketing		28,720			23,647			16,977			20,420
Loss from operations		(64,700	)		(51,779	)		(34,853	)		(59,362	)
Other income, net		1,688			1,557			1,258			1,442
Net loss	$	(63,012	)	$	(50,222	)	$	(33,595	)	$	(57,920	)
Basic and diluted net loss per share	$	(0.80	)	$	(0.63	)	$	(0.42	)	$	(0.65	)