CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 30, 2022	Dec. 31, 2021	Jan. 01, 2021
Income Statement [Abstract]
Net sales		$ 284,391	$ 230,472	$ 163,460
Cost of sales		61,008	51,835	45,098
Gross profit		223,383	178,637	118,362
Selling, general and administrative expenses:
General and administrative		54,742	44,142	33,911
Selling and marketing		88,856	67,294	45,764
Research and development		35,983	33,862	31,918
Total selling, general and administrative expenses		179,581	145,298	111,593
Operating income		43,802	33,339	6,769
Other income (expense), net:
Interest income (expense), net		2,448	(38)	238
Gain (loss) on foreign currency transactions	[1]	(1,707)	(2,964)	864
Royalty income		804	1,015	440
Other income (loss), net		205	(48)	(44)
Total other income (expenses), net		1,750	(2,035)	1,498
Income before income taxes		45,552	31,304	8,267
Provision for income taxes		6,797	6,803	2,354
Net income		$ 38,755	$ 24,501	$ 5,913
Net income per share:
Basic		$ 0.81	$ 0.52	$ 0.13
Diluted		$ 0.78	$ 0.50	$ 0.12
Weighted average shares outstanding:
Basic		47,987	47,210	45,605
Diluted		49,380	49,456	47,953

[1] Shown as a separate line item on the Consolidated Statements of Income.