Note 10 - Income Taxes (Details) - Income Tax Reconciliation (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Income Tax Reconciliation [Abstract]
Provision for income taxes at federal statutory rate	$ 8,823	$ 6,299	$ 954
Provision for income taxes at federal statutory rate	35.00%	35.00%	35.00%
Qualified production activities deduction	(755)	(165)
Qualified production activities deduction	(3.00%)	(0.90%)
Valuation allowance	(183)	51	(48)
Valuation allowance	(0.70%)	0.30%	(1.80%)
Net effect of life insurance policies	(150)	(191)	(400)
Net effect of life insurance policies	(0.60%)	(1.10%)	(14.70%)
State income taxes, net of federal tax benefit	577	479	94
State income taxes, net of federal tax benefit	2.30%	2.70%	3.50%
Nondeductible stock option expense	30	(51)	161
Nondeductible stock option expense	0.10%	(0.30%)	5.90%
Other, net	225	(160)	156
Other, net	0.90%	(0.90%)	5.70%
Provision for income taxes	$ 8,567	$ 6,262	$ 917
Provision for income taxes	34.00%	34.80%	33.60%