Note 16 - Contingencies (Details Textual) - USD ($)	3 Months Ended	9 Months Ended
	Jun. 29, 2019	Jun. 29, 2019	Sep. 29, 2018
Fire [Member]
Insurance Recoveries	$ 486,000	$ 2,200,000
Insurance Settlements Receivable			$ 462,000
Fire [Member] | Cost of Sales [Member]
Insurance Recoveries	339,000	645,000
Fire [Member] | Other Income [Member]
Insurance Recoveries	144,000	1,100,000
Fire [Member] | Selling, General and Administrative Expenses [Member]
Insurance Recoveries	$ 3,000	48,000
Storm [Member]
Insurance Recoveries		150,000
Storm [Member] | Other Income [Member]
Insurance Recoveries		$ 98,000