Note 7 - Income Taxes (Details Textual) - USD ($)	3 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Oct. 01, 2022
Effective Income Tax Rate Reconciliation, Percent, Total	22.90%	23.00%
Deferred Tax Liabilities, Net, Total	$ 5,708,000		$ 7,086,000
Deferred Tax Assets, Valuation Allowance	32,000		$ 32,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	$ 7,100,000
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Operating Loss Carryforwards Expiration Date 1	2031
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Operating Loss Carryforwards Expiration Date 1	2038