Condensed Consolidated Balance Sheet (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 29, 2018
Current Assets:
Accounts receivable, allowances	$ 2,810	$ 2,897
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	150,000,000	150,000,000
Common stock, issued (in shares)	14,624,159	14,624,159
Treasury stock (in shares)	3,369,304	3,514,163