Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Schedule of Stock Based Compensation Expense

The following presents the impact of stock based compensation expense on our condensed consolidated statements of operations (in thousands):

	Three Months Ended June 30,					Six Months Ended June 30,
	2018			2017		2018			2017
Marketing and selling	$	2,152		$	2,563	$	3,886		$	4,893
Research and development		893			1,078		1,881			2,096
General and administrative		1,545			1,551		3,070			3,034
Restructuring		(1,402	)		—		(1,402	)		—
Total expensed	$	3,188		$	5,192	$	7,435		$	10,023
Property and equipment		7			31		21			53
Total stock based compensation	$	3,195		$	5,223	$	7,456		$	10,076