Note 15 - Contingencies (Details Textual) - USD ($)	3 Months Ended
	Dec. 29, 2018	Sep. 29, 2018
Fire [Member]
Insurance Recoveries	$ 391,000
Insurance Settlements Receivable	263,000	$ 462,000
Fire [Member] | Cost of Sales [Member]
Insurance Recoveries	187,000
Fire [Member] | General and Administrative Expense [Member]
Insurance Recoveries	5,000
Storm [Member]
Insurance Recoveries	150,000
Storm [Member] | Other Income [Member]
Insurance Recoveries	$ 98,000