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Note 11 - Subsequent Event (Details Textual) - Realignment Plan [Member] - USD ($)
3 Months Ended
Oct. 27, 2015
Dec. 31, 2015
Subsequent Event [Member] | UNITED STATES    
Restructuring Reserve, Period Increase (Decrease) $ (1,700,000)  
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent (5.00%)  
Scenario, Forecast [Member] | One-time Termination Benefits [Member]    
Payments for Restructuring   $ 450,000
Scenario, Forecast [Member]    
Other Nonrecurring Expense   500,000
Restructuring Estimated Non-cash Charges   $ 50,000