CarParts.com, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

Commitments and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended			0 Months Ended		1 Months Ended	0 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Apr. 17, 2013	Jul. 31, 2011	Dec. 31, 2008	Mar. 01, 2010	Nov. 01, 2011	Sep. 22, 2011 sqft
Other Commitments [Line Items]
Initial lease term	5 years
Facility rent expense	$ 1,895us-gaap_LeaseAndRentalExpense	$ 2,150us-gaap_LeaseAndRentalExpense	$ 2,388us-gaap_LeaseAndRentalExpense
Property and equipment	16,966us-gaap_PropertyPlantAndEquipmentNet	19,663us-gaap_PropertyPlantAndEquipmentNet
Capital Leased Assets (Facility)
Other Commitments [Line Items]
Estimated useful life of property and equipment	20 years			20 years
Property and equipment	8,736	9,253
Chesapeake, Virginia
Other Commitments [Line Items]
Lease expiration date	Jun. 30, 2016
Chesapeake, Virginia \| Warehouse
Other Commitments [Line Items]
Initial lease term						5 years
Lease expiration date					Jun. 30, 2016	Dec. 31, 2013
Base rent commitment	60
Philippines
Other Commitments [Line Items]
Initial lease term	63 months
Lease renewal term	60 months
Property and equipment	244	508
Philippines \| Commercial Office Space
Other Commitments [Line Items]
Lease renewal term							60 months
Monthly lease rent							25
Annual escalation, percentage							5.00%
Lease escalation beginning period							3 years
Carson, California \| Commercial Office Space
Other Commitments [Line Items]
Sublease initial term								60 months
Effective sublease initial term								42 months
Nia Chloe \| Sol Khazani
Other Commitments [Line Items]
Facility rent expense	378	374	374
STORE \| LaSalle, Illinois Facility
Other Commitments [Line Items]
Lease expiration date				Apr. 30, 2033
Purchase and sale agreement date				April 17, 2013
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 \| Capital Leased Assets (Facility)
Other Commitments [Line Items]
Estimated useful life of property and equipment				20 years
Property and equipment	$ 8,736
Sublease of Office Building \| Carson, California
Other Commitments [Line Items]
Area of Real Estate Property									25,000
Sublease of Warehouse \| Chesapeake, Virginia
Other Commitments [Line Items]
Area of Real Estate Property					87,000