Note 10 - Collaboration and License Agreements (Details) - Cash Streams And Related Revenue Recognized Or Deferred Under Collaborative Agreements (Abbott [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Collaborative Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Amount Deferred	$ 725
Revenue Recognized	18
Foreign Currency Effects	(101)
Amount Deferred	606
Product Sales Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Cash Received	9,437
Revenue Recognized	10,680
Change in Accounts Receivable	1,124
Foreign Currency Effects	$ 119