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Note 23 - Segment Information (Details Textual)
3 Months Ended 12 Months Ended
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
a
Other Income [Member]    
Segment Information [Line Items]    
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal $ 3,000,000 $ 3,000,000
Eastman Business Park Rochester NY [Member]    
Segment Information [Line Items]    
Number of Reportable Segments   7
Area of Real Estate Property | a   1,200
Manufacturing Costs   $ 0