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Note 19 - Subsequent Event (Details Textual) - Subsequent Event [Member] - ASR Agreement [Member] - USD ($)
$ in Millions
Feb. 29, 2016
Feb. 26, 2016
Stock Repurchased During Period, Value   $ 25
Payments for Repurchase of Common Stock $ 25  
Stock Repurchased During Period, Shares 377,155