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Note 14 - Segment Information (Details)
$ in Millions
9 Months Ended
Sep. 30, 2015
USD ($)
a
Note 14 - Segment Information (Details) [Line Items]  
Number of Reportable Segments 7
Other Income [Member]  
Note 14 - Segment Information (Details) [Line Items]  
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal | $ $ 3
Eastman Business Park Rochester NY [Member]  
Note 14 - Segment Information (Details) [Line Items]  
Area of Real Estate Property 1,200