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Net Income per Share (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Net income available to common shareholders
Net income, as reported	$ 2,853	$ 2,423
Less: net income attributable to participating shares	20	18
Net income available to common shareholders	$ 2,833	$ 2,405
Reconciliation of basic to diluted weighted average shares of common stock outstanding
Basic weighted average shares outstanding	8,419,000	8,871,000
Stock options and restricted stock units (in shares)	202,000	56,000
Diluted weighted average shares outstanding	8,621,000	8,927,000
Calculation of common stock equivalents for purposes of computing diluted weighted average shares outstanding
Anti-dilutive securities excluded from EPS computation (in shares)	8,234	346,245

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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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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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