Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Dec. 26, 2020	Dec. 28, 2019
Operating activities:
Net earnings	$ 1,778,000	$ 17,059,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation of fixed assets	12,269,000	11,887,000
Amortization of intangibles and deferred costs	679,000	843,000
Share-based compensation	1,244,000	1,299,000
Deferred income taxes	(8,000)	(231,000)
Loss on marketable securities	(681,000)	9,000
Other	(80,000)	14,000
Changes in assets and liabilities net of effects from purchase of companies
Decrease in accounts receivable	13,701,000	10,254,000
Increase in inventories	(5,641,000)	(8,524,000)
(Increase) decrease in prepaid expenses	(889,000)	1,922,000
Decrease in accounts payable and accrued liabilities	(1,068,000)	(963,000)
Net cash provided by operating activities	21,304,000	33,569,000
Investing activities:
Payments for purchases of companies, net of cash acquired	0	(44,970,000)
Purchases of property, plant and equipment	(9,676,000)	(17,605,000)
Purchases of marketable securities	0	(4,000,000)
Proceeds from redemption and sales of marketable securities	26,148,000	18,782,000
Proceeds from disposal of property and equipment	880,000	898,000
Other	15,000	38,000
Net cash provided by (used in) investing activities	17,367,000	(46,857,000)
Financing activities:
Proceeds from issuance of stock	4,390,000	468,000
Payments on finance lease obligations	(86,000)	(86,000)
Payment of cash dividend	(10,876,000)	(9,447,000)
Net cash used in financing activities	(6,572,000)	(9,065,000)
Effect of exchange rate on cash and cash equivalents	427,000	285,000
Net increase (decrease) in cash and cash equivalents	32,526,000	(22,068,000)
Cash and cash equivalents at beginning of period	195,809,000	192,395,000
Cash and cash equivalents at end of period	$ 228,335,000	$ 170,327,000