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Net Income per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Net income available to common shareholders
Net income, as reported	$ 5,580	$ 6,839	$ 10,245	$ 11,725
Less: net income attributable to participating shares	24	39	34	69
Net income available to common shareholders	$ 5,556	$ 6,800	$ 10,211	$ 11,656
Reconciliation of basic to diluted weighted average shares of common stock outstanding
Basic weighted average shares outstanding	7,925	8,053	7,970	8,169
Dilutive stock options and restricted stock units	293	497	312	480
Diluted weighted average shares outstanding	8,218	8,550	8,282	8,649
Calculation of common stock equivalents for purposes of computing diluted weighted average shares outstanding
Anti-dilutive securities excluded from EPS computation (in shares)	45,200	22,757	31,378	11,379

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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