Note 6 (Details Textual) - USD ($)	3 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Sep. 29, 2018
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 399,000		$ 394,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	$ 264,000		$ 259,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability		$ 20,900,000
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		$ 1,200,000
Effective Income Tax Rate Reconciliation, Percent, Total	28.00%	28.60%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	$ 900,000