Note 6 (Details Textual) - USD ($)	9 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Sep. 29, 2018
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 409,000		$ 394,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	$ 274,000		$ 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	27.50%	28.40%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount		$ 900,000