Note 6 - Intangible Assets (Details) - Value of Intangible Assets (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended	45 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Net	$ 3,644		$ 3,607	$ 3,644	$ 3,896
Additions	111
Amortization	(74)	(71)	(289)	(806)
iCo [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Net	2,045		2,087	2,045	2,254
Amortization	(42)		(167)
Yissum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Net	556		567	556	613
Amortization	(11)		(46)
Kadouche [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Net	556		568	556	615
Amortization	(12)		(47)
Mablife [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Net	487		385	487	414
Additions	111
Amortization	$ (9)		$ (29)