Share-Based Compensation

6 Months Ended

Jun. 30, 2019

Share Based Compensation [Abstract]

Share-Based Compensation

NOTE 6 – Share-Based Compensation

The table below sets forth the line items where share-based compensation expense was recorded:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Cost of goods sold	$	259	$	80	$	384	$	170
Selling, general and administrative		4,309		4,031		7,946		9,484
Research and development		730		689		1,445		1,426
Total share-based compensation expense	$	5,298	$	4,800	$	9,775	$	11,080

The table below sets forth share-based compensation expense by type:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Stock options	$	-	$	84	$	-	$	275
Share grants		5,298		4,716		9,775		10,805
Total share-based compensation expense	$	5,298	$	4,800	$	9,775	$	11,080

Stock Options. Approximately $6.7 million in cash proceeds was received from stock option exercises during the six months ended June 30, 2019.

As of June 30, 2019, we had no unrecognized share-based compensation expense related to unvested stock options.  

Share Grants. Restricted stock awards and restricted stock units generally vest in equal annual installments over a four-year period.   We also have share grants that are performance-based and time-based that vest upon achievement of certain performance criteria over time.             

As of June 30, 2019, total unrecognized share-based compensation expense related to share grants was approximately $38.9 million, before income taxes, and is expected to be recognized over a weighted average period of approximately 2.2 years.