Commitments and Contingencies - Additional Information (Details) $ in Thousands				12 Months Ended
	Feb. 04, 2016 USD ($) ft²	Apr. 17, 2013 USD ($)	Mar. 01, 2010 USD ($)	Dec. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 02, 2016 USD ($)
Other Commitments [Line Items]
Facility rent expense				$ 1,734	$ 1,670	$ 1,555
Property and equipment				$ 15,085	16,478
Facility subject to capital lease
Other Commitments [Line Items]
Estimated useful life of property and equipment		20 years		20 years
Property and equipment				$ 8,185	9,033
Chesapeake, Virginia | Warehouse
Other Commitments [Line Items]
Area of real estate property | ft²	159,294
Initial lease term	3 years
Base rent commitment	$ 640			54
Annual escalation, percentage	2.50%
Lease renewal term	3 years
Philippines
Other Commitments [Line Items]
Property and equipment				$ 269	$ 367
Philippines | Commercial Office Space
Other Commitments [Line Items]
Annual escalation, percentage			5.00%
Lease renewal term			60 months
Monthly lease rent			$ 25
Lease escalation beginning period			3 years
STORE | LaSalle, Illinois Facility
Other Commitments [Line Items]
Period of lease under sale and lease back transaction		20 years
Initial base annual rent for first year		$ 853
Percentage of annual increase in base rent		1.50%
Increased percentage in base rent with change in consumer price index		1.25
Excess of net proceeds over the net carrying value of capital leased asset under sale and lease back		$ 376
STORE | LaSalle, Illinois Facility | Facility subject to capital lease
Other Commitments [Line Items]
Estimated useful life of property and equipment		20 years