Earnings per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	289,333	512,720	412,981
Net income (loss)	$ 16,085	$ (11,576)	$ (13,872)
Basic weighted shares outstanding (in shares)	8,913,000	8,750,000	8,600,000
Dilutive effect of share-based awards (in shares)	156,000	0	0
Diluted weighted average shares outstanding (in shares)	9,069,000	8,750,000	8,600,000
Basic earnings per share (in dollars per share)	$ 1.80	$ (1.32)	$ (1.61)
Diluted earnings per share (in dollars per share)	$ 1.77	$ (1.32)	$ (1.61)
Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	78,333	170,334	218,917
Performance Shares (2)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	67,000	126,306	110,209
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	69,000	140,180	5,405
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	75,000	75,900	78,450

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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