Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 27, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowance for credit loss	$ 1,318	$ 1,321
Property and equipment, accumulated depreciation	$ 169,721	$ 162,920
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	35,000,000	35,000,000
Common stock, shares issued (in shares)	11,683,131	11,572,668
Common Stock, shares outstanding (in shares)	11,683,131	11,572,668