Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Taxes [Abstract]

Schedule Of Deferred Taxes

	December 31,
	2013		2012
Deferred tax assets:
NOL carry-forwards	$	144,526	$	137,870
Research and development credit		8,085		8,085
Deferred revenue		3,808		3,808
Stock-based compensation		2,831		2,831
Other		1,276		2,375
		160,526		154,969
Deferred tax liabilities:
Investments		(4,889)		(4,953)
Other		(423)		(389)
Net deferred tax asset before valuation allowance		155,214		149,627
Valuation allowance		(155,214)		(149,627)
Net deferred tax assets	$	-	$	-