Stock-Based Compensation - Summary of Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 28, 2017	Jan. 03, 2017
Shares
Options outstanding, Beginning balance (in shares)	334,500
Granted (in shares)	5,000
Exercised (in shares)	0
Forfeited (in shares)	(1,500)
Options outstanding, Ending balance (in shares)	338,000	334,500
Options exercisable (in shares)	54,500
Options exercisable and expected to vest (in shares)	315,444
Weighted Average Exercise Price
Weighted Average Exercise Price, Options outstanding, Beginning balance (in dollars per share)	$ 9.94
Weighted Average Exercise Price, Granted (in dollars per share)	14.55
Weighted Average Exercise Price, Exercised (in dollars per share)	0.00
Weighted Average Exercise Price, Forfeited (in dollars per share)	10.40
Weighted Average Exercise Price, Options outstanding, Ending balance (in dollars per share)	10.01	$ 9.94
Weighted Average Exercise Price, Options exercisable (in dollars per share)	10.38
Weighted Average Exercise Price, Options exercisable and expected (in dollars per share)	$ 10.02
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted Average Remaining Contractual Term, Options outstanding (in years)	5 years 10 months 24 days	6 years 1 month
Weighted Average Remaining Contractual Term, Options exercisable (in years)	5 years 8 months 12 days
Weighted Average Remaining Contractual Term, Options exercisable and expected to vest (in years)	5 years 10 months 24 days
Aggregate Intrinsic Value, Options outstanding, Beginning balance	$ 1,464
Aggregate Intrinsic Value, Options outstanding, Ending balance	1,042	$ 1,464
Aggregate Intrinsic Value, Options exercisable	146
Aggregate Intrinsic Value, Options excersiable and expected to vest	$ 970