Note 16 - Contingencies (Details Textual) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 30, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018
Fire [Member]
Insurance Recoveries	$ 1,400,000	$ 1,800,000
Insurance Settlements Receivable			$ 263,000	$ 462,000
Fire [Member] | Other Income [Member]
Insurance Recoveries	950,000	950,000
Fire [Member] | Cost of Sales [Member]
Insurance Recoveries	120,000	306,000
Fire [Member] | Selling, General and Administrative Expenses [Member]
Insurance Recoveries	$ 40,000	45,000
Storm [Member]
Insurance Recoveries		150,000
Storm [Member] | Other Income [Member]
Insurance Recoveries		$ 98,000