SEGMENT INFORMATION (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Summary of Revenue by Geographic Region

The following table summarizes revenue by geographic region:

	Three months ended March 31,
	2014		2013
	(in thousands)
China	$	6,450	$	959
Taiwan		3,764		39
Korea		1,896		570
United States		1,370		915
Australia		—		5,406
Other		788		418
Revenue	$	14,268	$	8,307

Summary of Revenue by Product Type

The following table summarizes revenue by product type:

	Three months ended March 31,
	2014		2013
	(in thousands)
Core	$	11,355	$	987
Polished		1,095		6,057
Optical		1,638		1,144
Research & Development		125		98
Other		55		21
Revenue	$	14,268	$	8,307

Summary of Assets by Geographic Region

The following table summarizes assets by geographic region:

	March 31, 2014		December 31, 2013
	(in thousands)
United States	$	182,074	$	157,572
Malaysia		46,724		45,086
Other		26		37
Total Assets	$	228,824	$	202,695