CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2022	Jul. 02, 2021
Cash flows from operating activities:
Net income	$ 22,640	$ 13,559
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant, and equipment	2,024	1,754
Amortization of intangibles	15	17
Deferred income taxes		845
Change in net pension liability	52	(27)
Loss on disposal of property and equipment		2
Stock-based compensation expense	9,648	7,322
Provision for sales returns and bad debts	800	932
Inventory provision	1,428	697
Changes in working capital:
Accounts receivable	(20,137)	(13,797)
Inventories	(1,825)	2,238
Prepayments, deposits, and other current assets	(2,260)	(307)
Accounts payable	3,243	(268)
Other current liabilities	(6,992)	181
Net cash provided by operating activities	8,636	13,148
Cash flows from investing activities:
Acquisition of property and equipment	(7,810)	(5,683)
Net cash used in investing activities	(7,810)	(5,683)
Cash flows from financing activities:
Repayment of finance lease obligations	(45)	(278)
Proceeds from the exercise of stock options	3,146	14,110
Proceeds from vested restricted stock		1
Net cash provided by financing activities	3,101	13,833
Effect of exchange rate changes on cash and cash equivalents	(1,143)	(668)
Increase in cash and cash equivalents	2,784	20,630
Cash and cash equivalents, at beginning of the period	199,706	152,453
Cash and cash equivalents, at end of the period	$ 202,490	$ 173,083