GOODWILL AND INTANGIBLE ASSETS, NET (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in Goodwill

Changes in goodwill are as follows:

	2013		2014
Balance as of January 1,	$	36,498	$	36,498
Acquisition		—		10,114
Balance as of December 31,	$	36,498	$	46,612

Summary of Intangible Assets

(b) Intangible assets:

			Year ended December 31, 2014
	Weighted Average Amortization Period (Years)		Gross Carrying Amount		Accumulated Amortization		Net
Intangible assets – amortizable:
Customer relationships		4.5		272		30		242
Customer backlog		1.5		93		31		62
Core technologies		5.1		5,796		588		5,208
Total intangible assets			$	6,161	$	649	$	5,512

Summary of Future Estimated Annual Amortization Charges

Future estimated annual amortization charges are as follows:

2015	$	1,298
2016		1,236
2017		1,236
2018		901
2019		841
	$	5,512