Investments in and Advances to Partially-Owned Affiliates (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Equity method investment, summarized financial information, advanced			$ 393	$ 0
Zenara Pharma [Member]
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Equity method investment, summarized financial information, net income (loss)	(368)	(303)	(853)	(667)
Equity method investment, summarized financial information, amortization expense	238	288	494	570
Equity method investment, summarized financial information, advanced	393		393
European Joint Venture [Member]
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Equity method investment, summarized financial information, net income (loss)	$ (15)		$ 262