Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019
Cash flows from operating activities:
Net earnings	$ 33,017,000	$ 30,496,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Provision for depreciation	2,070,000	2,815,000
Intangibles amortization	168,000	0
Non-cash retirement plan expense	379,000	359,000
Loss (gain) on sale of property, plant, and equipment	2,000	(160,000)
Gain on legal settlement	0	(2,300,000)
Other	558,000	670,000
Changes in operating accounts:
Accounts receivable, net	(21,699,000)	11,049,000
Inventories	(7,566,000)	(39,421,000)
Other assets and current assets	(6,684,000)	(3,351,000)
Accounts payable and accrued liabilities	10,030,000	(5,099,000)
Federal and state income taxes	(2,011,000)	1,372,000
Net cash provided by (used in) operating activities	8,264,000	(3,570,000)
Cash flows from investing activities:
Marketable securities purchased	(42,105,000)	(98,416,000)
Marketable securities - maturities and sales	41,859,000	148,406,000
Proceeds from note receivable	0	2,100,000
Purchase of property, plant and equipment	(1,498,000)	(4,326,000)
Acquisition of business, net of cash acquired	0	(3,733,000)
Proceeds from legal settlement	0	2,300,000
Proceeds from insurance settlement	0	807,000
Sale of property, plant and equipment	0	767,000
Net cash (used in) provided by investing activities	(1,744,000)	47,905,000
Cash flows from financing activities:
Dividends paid	(42,172,000)	(42,087,000)
Proceeds from sale of treasury stock	528,000	518,000
Other	(27,000)	(442,000)
Net cash used in financing activities	(41,671,000)	(42,011,000)
Net (decrease) increase in cash and cash equivalents	(35,151,000)	2,324,000
Cash and cash equivalents at beginning of period	79,579,000	56,847,000
Cash and cash equivalents at end of period	$ 44,428,000	$ 59,171,000