Note 17 - Legal and Regulatory Matters (Detail)	3 Months Ended
	Mar. 31, 2013
Loss Contingency Patent Infringement Litigation Period Within Which Patent Holder May File Suit For Patent Infringement	45 days
Loss Contingency Patent Infringement Litigation Maximum Stay Period For Approval Of Abbreviated New Drug Application	30 months
Number Of Products	3
Number Of Agreements	2
Product under Teva Agreement in Litigation [Member]
Number Of Products	3