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Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		8 Months Ended
	Sep. 10, 2019	Sep. 11, 2018	Sep. 10, 2019	Sep. 11, 2018	Jan. 01, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payments related to employee tax withholding obligations			$ 2,602	$ 2,378
Number of awards outstanding (in shares)	1,235,532		1,235,532		1,234,531
Number of stock options outstanding (in shares)	431,500		431,500		453,250
Granted (in shares)			531,173
2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved and authorized for issuance (in shares)	3,300,000		3,300,000
Common stock authorized and available for grant (in shares)	593,384		593,384
Stock-based compensation expense recorded	$ 1,300	$ 1,500	$ 4,600	4,100
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense, net	11,300		$ 11,300
Weighted average period of recognition (in years)			2 years 9 months 7 days
Payments related to employee tax withholding obligations			$ 2,600	$ 2,400
Shares paid for tax withholding for share based compensation			204,494	168,484
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock compensation expense	$ 500		$ 500
Vesting period (in years)			2 years 2 months 9 days