Income Taxes (Schedule Of Differences Between Statutory Tax And Effective Tax) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes Schedule Of Differences Between Statutory Tax And Effective Tax Details
Computed "expected" tax benefit	$ (4,529)	$ (6,370)	$ (12,325)
Expiration of tax attributes	0	0	360
IRC §382 adjustment	6,575	59,822	94,442
Change in the valuation allowance for deferred tax assets attributable to operations and other adjustments	2,840	(42,124)	(70,514)
U.S. and foreign credits	(12,237)	(10,231)	(11,732)
State income taxes, net of federal tax effect	182	0	0
Equity based compensation expense	678	513	578
Intellectual property	5,440	0	0
Foreign tax rate differences	940	0	0
Other	293	(1,610)	(791)
Income tax expense (benefit)	$ 182	$ 0	$ 18