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Note 6 (Details Textual) - USD ($)
3 Months Ended
Dec. 29, 2018
Dec. 28, 2019
Sep. 28, 2019
Unrecognized Tax Benefits that Would Impact Effective Tax Rate   $ 414,000 $ 414,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total   $ 279,000 $ 279,000
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount $ 900,000    
Effective Income Tax Rate Reconciliation, Percent, Total 28.00%