Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Taxes [Abstract]

Schedule of deferred tax assets, liabilities and valuation allowance

	Year Ended December 31,
(In thousands)	2013			2014
Deferred tax assets:
Net operating loss carryforwards	$	108,110		$	108,348
Tax credit carryforwards		10,783			10,696
Depreciation and amortization		3,605			3,709
Other		78			185
Total deferred tax assets		122,576			122,938
Valuation allowance		(122,576	)		(122,938	)
Net deferred tax assets		-			-
Deferred tax liabilities:
Intangible assets		(2,345	)		(2,345	)
Net deferred tax liabilities	$	(2,345	)	$	(2,345	)