Note 10 - Employee Benefit Plans - Projected Benefit Obligation Reconciliation for Delaware Plan (Details) - Pension Plan [Member] $ in Thousands	12 Months Ended
	Oct. 01, 2016 USD ($)
Benefit obligation	$ 3,463
Interest cost	147
Actuarial (gain) loss	324
Plan settlement	290
Distributions	(4,224)
Benefit obligation
Fair value of plan assets	2,201
Actual return on plan assets	104
Defined Benefit Plan, Plan Assets, Contributions by Employer	1,919
Plan settlement	(4,003)
Distributions	(221)
Fair value of plan assets
Funded status
Net amount recognized
Accrued benefit liability
Accumulated other comprehensive loss (net of tax)
Net amount recognized
Unrecognized net loss
Net amount recognized
Net loss	685
Amortization of net loss	(76)
Settlement loss	(2,539)
Total recognized in other comprehensive income loss	$ (1,930)