CarParts.com, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity and Share-Based Compensation - Schedule of Changes in Company's Ownership Interest (Details)

Stockholders' Equity and Share-Based Compensation - Schedule of Changes in Company's Ownership Interest (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Jan. 03, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 22,223
Net loss	(316)us-gaap_ProfitLoss	201us-gaap_ProfitLoss
Issuance of shares in connection with stock option exercise	13
Share-based compensation	549
Issuance of shares related to dividends on preferred stock	0
Common stock dividend distributable on Series A Preferred Stock	0us-gaap_DividendsCommonStock
Effect of changes in foreign currencies	(10)
Ending balance	22,021
Common stock amount
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			33
Ending balance	34		33
Preferred stock amount
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			4
Ending balance	4		4
Additional Paid-in- Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	174,369
Issuance of shares in connection with stock option exercise	13
Share-based compensation	549
Issuance of shares related to dividends on preferred stock	60
Ending balance	174,552
Common Stock Dividend Distributable
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	0
Issuance of shares related to dividends on preferred stock	(60)
Common stock dividend distributable on Series A Preferred Stock	60
Ending balance	0
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	360
Effect of changes in foreign currencies	(10)
Ending balance	350
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(155,489)
Net loss	(60)
Common stock dividend distributable on Series A Preferred Stock	(60)
Ending balance	(155,609)
Total Stockholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	19,277
Net loss	(60)
Issuance of shares in connection with stock option exercise	13
Share-based compensation	549
Effect of changes in foreign currencies	(10)
Ending balance	19,331
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	2,946
Net loss	(256)
Ending balance	2,690
Restricted Stock Units
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Statutory tax withholding on RSUs	(358)
Restricted Stock Units \| Common stock amount
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Statutory tax withholding on RSUs	(1)
Restricted Stock Units \| Additional Paid-in- Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Statutory tax withholding on RSUs	(359)
Restricted Stock Units \| Total Stockholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Statutory tax withholding on RSUs	(358)
Stock Option
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Statutory tax withholding on RSUs	(80)
Stock Option \| Additional Paid-in- Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Statutory tax withholding on RSUs	(80)
Stock Option \| Total Stockholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Statutory tax withholding on RSUs	$ (80)