Debt - Mortgage Notes And Other Debt (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Mortgage notes and other debt payables
Current portion of lines of credit and notes payable	$ 14,477	[1]	$ 17,526	[1]
Mortgages and other debts payable	3,350		5,150
Farmadiet Acquisition [Member]
Mortgage notes and other debt payables
Current portion of lines of credit and notes payable	1,796		2,331
Mortgages and other debts payable	3,350		3,916
Total mortgage notes and other debt payables	$ 5,146		$ 6,247

[1] As of September 30, 2013 and December 31, 2012, total assets include $5.9 million and $5.6 million, respectively, and total liabilities include $8.7 million and $5.5 million, respectively related to SciVac Ltd ("SciVac"), previously known as SciGen (I.L.) Ltd, a consolidated variable interest entity. SciVac’s consolidated assets are owned by SciVac and SciVac’s consolidated liabilities have no recourse against us. Refer to Note 5.