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

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies and Nature of Operations (Policies)
Notes Tables
Notes Details
Uncategorized
- Uncategorized Items - prts-20191228.xml

Employee Retirement Plan and Deferred Compensation Plan - Additional Information (Details)

v3.20.1

Employee Retirement Plan and Deferred Compensation Plan - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2010	Dec. 28, 2019	Dec. 29, 2018
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Minimum service period required to cover under plan		1 month
Employer's match per dollar of participants salary		$ 0.50
Employer's match percentage of participants salary		6.00%
Contributions vest in annual installments		3 years
Discretionary contributions		$ 332,000	$ 292,000
Highly Compensated Employees
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Participant deferral of base salary, percentage (up to)	90.00%
Participant deferral of annual earned bonus, percentage (up to)	100.00%
Deferred compensation plan vested	100.00%
Employer contribution percentage of eligible participants eligible contribution	50.00%
Percentage of individual eligible contribution to Deferred Compensation Plan account	2.00%
Other non-current assets \| Highly Compensated Employees
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation plan assets		671,000	533,000
Other non-current liabilities \| Highly Compensated Employees
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred compensation plan associated liabilities		$ 674,000	$ 662,000

- Definition

Deferred Compensation Arrangement with Individual, Cash Awards Granted, Percentage of Annual Earned Bonus

+ References

No definition available.

+ Details

Name:	prts_DeferredCompensationArrangementWithIndividualCashAwardsGrantedPercentageOfAnnualEarnedBonus
Namespace Prefix:	prts_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Deferred Compensation Arrangement with Individual, Employer Contribution, Percentage

+ References

No definition available.

+ Details

Name:	prts_DeferredCompensationArrangementWithIndividualEmployerContributionPercentage
Namespace Prefix:	prts_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Deferred Compensation Arrangement with Individual, Vesting Percentage

+ References

No definition available.

+ Details

Name:	prts_DeferredCompensationArrangementWithIndividualVestingPercentage
Namespace Prefix:	prts_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Contribution Plan, Employer Matching Contribution, Per Dollar

+ References

No definition available.

+ Details

Name:	prts_DefinedContributionPlanEmployerMatchingContributionPerDollar
Namespace Prefix:	prts_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Defined Contribution Plan, Employers Matching Contribution, Annual Installment Vesting Period

+ References

No definition available.

+ Details

Name:	prts_DefinedContributionPlanEmployersMatchingContributionAnnualInstallmentVestingPeriod
Namespace Prefix:	prts_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Contribution Plan, Requisite Service Period

+ References

No definition available.

+ Details

Name:	prts_DefinedContributionPlanRequisiteServicePeriod
Namespace Prefix:	prts_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents percentage of participants' eligible contributions into their Deferred Compensation Plan accounts.

+ References

No definition available.

+ Details

Name:	prts_IndividualPercentageOfEligibleContributionToDeferredCompensationPlan
Namespace Prefix:	prts_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Commitment made to pay deferred cash remuneration expressed as a percentage of the individual's base salary.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCompensationArrangementWithIndividualCashAwardsGrantedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements payable after one year (or the normal operating cycle, if longer). Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DeferredCompensationPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_TitleOfIndividualAxis=prts_HighlyCompensatedEmployeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OtherNoncurrentAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OtherNoncurrentLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: