CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Jun. 28, 2019	Sep. 28, 2018	Jun. 29, 2018
Current assets:
Cash and cash equivalents	$ 148,968	$ 121,877	$ 104,277
Short term investments	0	28,714	25,000
Accounts receivable, net	82,860	40,866	80,877
Inventories	95,833	88,864	77,299
Other current assets	5,519	5,373	1,012
Total current assets	333,180	285,694	288,465
Property, plant and equipment, net of accumulated depreciation of $140,316, $131,322 and $129,028, respectively	58,143	55,934	54,152
Deferred income taxes	11,198	11,748	12,829
Goodwill	11,195	11,199	11,184
Other intangible assets, net	11,538	12,341	12,716
Other assets	20,304	19,020	18,205
Total assets	445,558	395,936	397,551
Current liabilities:
Accounts payable	37,190	34,160	32,978
Accrued liabilities:
Salaries, wages and benefits	16,824	22,315	17,590
Accrued warranty	9,588	8,499	8,897
Income taxes payable	11,318	7,739	11,551
Accrued discounts and returns	7,864	7,505	6,450
Other	14,220	12,566	14,780
Total current liabilities	97,004	92,784	92,246
Deferred income taxes	1,700	1,715	1,775
Retirement benefits	1,964	1,945	3,788
Other liabilities	21,918	20,295	17,682
Total liabilities	122,586	116,739	115,491
Common stock:
Capital in excess of par value	75,192	75,025	74,229
Retained earnings	246,164	202,828	209,169
Accumulated other comprehensive income	2,873	3,487	805
Treasury stock at cost, shares of Class A common stock: 29,225, 67,655 and 67,655, respectively	(1,761)	(2,646)	(2,646)
Total shareholders’ equity	322,972	279,197	282,060
Total liabilities and shareholders’ equity	445,558	395,936	397,551
Class A
Common stock:
Shares issued and outstanding	443	442	442
Class B
Common stock:
Shares issued and outstanding	$ 61	$ 61	$ 61