Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets

Intangible assets consist of:

	March 31, 2015
	Average Remaining Amortization Period	Cost		Accumulated Amortization			Net Carrying Amount End of Year
Core technology	1.45 years		978	$	(734	)	$	244
Trade name	2.45 years		89		(56	)		33
Royalty license	See below		328		—			328
		$	1,395	$	(790	)	$	605

	December 31, 2014
	Average Remaining Amortization Period	Cost		Accumulated Amortization			Net Carrying Amount End of Year
Core technology	1.7 years		978	$	(691	)	$	287
Trade name	2.7 years		89		(53	)		36
Royalty license	See below		151		—			151
		$	1,218	$	(744	)	$	474

Schedule of Expected Aggregate Future Amortization Expense

The expected aggregate future amortization expense, excluding amortization expense related to the royalty license, is as follows:

Years	Amortization
2015	$	140
2016		128
2017		9
	$	277