Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

Intangible Assets

Schedule of gross carrying amount and related accumulated amortization of the intangible assets

The following sets forth the gross carrying amount and related accumulated amortization of these intangible assets, in thousands:

		March 31, 2015
		(unaudited)				December 31, 2014
	Weighted-	Gross Carrying		Accumulated		Gross Carrying		Accumulated
	Average Life	Amount		Amortization		Amount		Amortization
Purchased patents	10.0	$	2,292	$	2,125	$	2,292	$	2,067
Deferred legal fees		$	7,672	$	—	$	5,209	$	—