CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
Jun. 29, 2019	Jun. 30, 2018
Operating Activities
Net income	$ 19,266	$ 29,453
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	14,972	16,344
Slow moving inventory valuation adjustment	1,096	(348)
Stock-based compensation	3,174	2,668
(Gain) loss on sale of assets	53	(4)
Deferred income taxes	1,125	(513)
Changes in operating assets and liabilities:
Trade receivables	3,537	9,944
Inventories	(11,143)	16,049
Trade accounts payable and accrued expenses	(10,804)	(3,736)
Contract liability to customers	(6,202)	4,447
Employee compensation and benefits	(8,119)	5,242
Product liability	117	73
Prepaid expenses, other assets and other liabilities	(10,157)	155
Income taxes payable	(3,340)	1,221
Cash (used for) provided by operating activities	(6,425)	80,995
Investing Activities
Property, plant and equipment additions	(3,890)	(2,360)
Proceeds from sale of assets	14	4
Purchases of short-term investments	(118,972)
Proceeds from maturities of short-term investments	133,736
Cash provided by (used for) investing activities	10,888	(2,356)
Financing Activities
Remittance of taxes withheld from employees related to share-based compensation	(779)	(816)
Dividends paid	(9,956)	(9,599)
Cash used for financing activities	(10,735)	(10,415)
(Decrease) increase in cash and cash equivalents	(6,272)	68,224
Cash and cash equivalents at beginning of period	38,492	63,487
Cash and cash equivalents at end of period	$ 32,220	$ 131,711

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