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Note 13 - Revenue by Product Group, by Significant Customer and by Geographic Region; Geographic Information (Details) - Product Revenue by Significant Customers as a Percent of Product Revenues (Customer Concentration Risk [Member], Sales Revenue, Goods, Net [Member])
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Note 13 - Revenue by Product Group, by Significant Customer and by Geographic Region; Geographic Information (Details) - Product Revenue by Significant Customers as a Percent of Product Revenues [Line Items]      
Percent of Product Revenue by Significant Customers 79.00% 82.00% 74.00%
DePuy Mitek, Inc.[Member]
     
Note 13 - Revenue by Product Group, by Significant Customer and by Geographic Region; Geographic Information (Details) - Product Revenue by Significant Customers as a Percent of Product Revenues [Line Items]      
Percent of Product Revenue by Significant Customers 63.00% 61.00% 47.00%
Boehringer [Member]
     
Note 13 - Revenue by Product Group, by Significant Customer and by Geographic Region; Geographic Information (Details) - Product Revenue by Significant Customers as a Percent of Product Revenues [Line Items]      
Percent of Product Revenue by Significant Customers 5.00% 4.00% 4.00%
Bausch & Lomb Inc. [Member]
     
Note 13 - Revenue by Product Group, by Significant Customer and by Geographic Region; Geographic Information (Details) - Product Revenue by Significant Customers as a Percent of Product Revenues [Line Items]      
Percent of Product Revenue by Significant Customers 5.00% 12.00% 16.00%
Rivex Pharma [Member]
     
Note 13 - Revenue by Product Group, by Significant Customer and by Geographic Region; Geographic Information (Details) - Product Revenue by Significant Customers as a Percent of Product Revenues [Line Items]      
Percent of Product Revenue by Significant Customers 3.00% 2.00% 1.00%
Medtronic [Member]
     
Note 13 - Revenue by Product Group, by Significant Customer and by Geographic Region; Geographic Information (Details) - Product Revenue by Significant Customers as a Percent of Product Revenues [Line Items]      
Percent of Product Revenue by Significant Customers 3.00% 3.00% 6.00%