Discontinued Operations of Adeona Clinical Laboratory and Note Receivable (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating Costs and Expenses:
General and administrative	$ 1,122	$ 1,468
Other Income:
Income (loss) from discontinued operations	0	649
Adeona Clinical Laboratory [Member]
Laboratory fees, net	0	115
Operating Costs and Expenses:
General and administrative	0	27
Cost of laboratory services	0	116
Total operating costs and expenses	0	143
Loss from discontinued operations	0	(28)
Other Income:
Gain on sale of Adeona Clinical Laboratory	0	677
Income (loss) from discontinued operations	$ 0	$ 649