Intangibles and Other Assets (Tables)

3 Months Ended

Mar. 31, 2015

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Schedule of Intangibles and Other Assets

	March 31,			December 31,
	2015			2014
	(In thousands)
Purchased patents and other purchased intangible assets	$	4,605		$	4,605
Other assets		264			265
Gross intangibles and other assets		4,869			4,870
Accumulated amortization of purchased patents and other purchased intangibles		(4,591	)		(4,579	)
Intangibles and other assets, net	$	278		$	291

Schedule of Amortization of Intangibles

The Company amortizes its intangible assets related to purchased patents, over their estimated useful lives, generally 10 years from the purchase date. Amortization of intangibles was as follows:

	Three Months Ended
	March 31,
	2015		2014
	(In thousands)
Amortization of intangibles	$	12	$	20

Schedule of Estimated Remaining Annual Amortization Expense for Purchased Patents

The table below includes estimated remaining annual amortization expense for purchased patents as of March 31, 2015.

	Estimated Amortization Expense
	(In thousands)
Remainder of 2015	$	8
2016		6
Total	$	14