Intangibles and Other Assets (Tables)

3 Months Ended

Mar. 31, 2014

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Schedule of Intangibles and Other Assets

	March 31, 2014			December 31, 2013
	(In thousands)
Patents and trademarks	$	5,731		$	5,731
Other assets		289			289
Gross intangibles and other assets		6,020			6,020
Accumulated amortization of patents and trademarks		(5,658	)		(5,639	)
Intangibles and other assets, net	$	362		$	381

Schedule of Amortization of Intangibles

Amortization of intangibles was as follows:

	Three Months Ended March 31,
	2014		2013
	(In thousands)
Amortization of intangibles	$	20	$	20

Schedule of Estimated Remaining Annual Amortization Expense for Purchased Patents

The table below includes estimated remaining annual amortization expense for purchsaed patents as of March 31, 2014.

	Estimated Amortization Expense
	(In thousands)
Remainder of 2014	$	47
2015		20
2016		6
Total	$	73