Selected Balance Sheet Information (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other Current Assets [Line Items]
Intrexon prepaid research and development expenses - See Note 10	$ 1,361	$ 2,412
Prepaid insurances	177	35
Prepaid expenses	53	45
Other receivables	0	17
Total	$ 1,591	$ 2,509