Note 8 - Leases (Details Textual) - USD ($)	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Lessee, Operating Lease, Term of Contract	5 years
Lease Annual Rent Payments	$ 171,000
Lessee, Operating Lease, Renewal Term	2 years 182 days
Operating Leases, Rent Expense, Total	$ 171,000	$ 171,000
Operating Leases, Future Minimum Payments Due, Total	513,000
Operating Leases, Future Minimum Payments Due, Next Twelve Months	171,000
Operating Leases, Future Minimum Payments, Due in Two Years	171,000
Operating Leases, Future Minimum Payments, Due in Three Years	$ 171,000