CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Cash flows from operating activities:
Net income (loss)	$ 5,093	$ (1,529)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	3,030	3,111
Stock-based compensation	7,424	7,586
Amortization of convertible debt discount	223	297
Amortization of warrant	435	429
Foreign currency remeasurement	1,290	(563)
Deferred income taxes, net	547	627
Provision for expected credit losses and returns	253	1,348
Provision for excess and obsolete inventories	2,027	2,738
Other adjustments	45	77
Changes in operating assets and liabilities:
Accounts receivable	20,277	(28,479)
Inventories	(10,547)	(11,841)
Other assets	(2,566)	(3,949)
Accounts payable	(12,507)	(12,260)
Deferred revenues	1,721	18,408
Other liabilities	(10,475)	(3,482)
Net cash provided by (used in) operating activities	6,270	(27,482)
Cash flows from investing activities:
Purchases of property and equipment	(2,331)	(2,438)
Net cash used in investing activities	(2,331)	(2,438)
Cash flows from financing activities:
Repurchase of common stock	0	(2,141)
Repayment of other debts	(152)	(99)
Proceeds from common stock issued to employees	3,085	2,966
Taxes paid related to net share settlement of equity awards	(6,353)	(2,693)
Net cash used in financing activities	(3,420)	(1,967)
Effect of exchange rate changes on cash and cash equivalents	772	(805)
Net increase (decrease) in cash and cash equivalents	1,291	(32,692)
Cash and cash equivalents at beginning of period	89,586	133,431
Cash and cash equivalents at end of period	90,877	100,739
Supplemental schedule of non-cash investing activities:
Capital expenditures incurred but not yet paid	$ 881	$ 1,328