Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jul. 03, 2020	Jan. 03, 2020
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 1,212	$ 810
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	90,000,000	90,000,000
Common stock, shares issued (in shares)	42,327	39,448
Common stock, shares outstanding (in shares)	41,438	38,559
Treasury stock, shares (in shares)	890	890