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Note 3 - Business Combination - Restructuring Charges (Details) (Employee Severance [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Dec. 27, 2014
Employee Severance [Member]
 
Liability as of September 27, 2014 $ 1,208us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
Cash payments (53)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
Liability as of December 27, 2014 $ 1,155us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember