Label	Element	Value
Preferred Stock [Member]
Stockholders Equity Shares Including Portion Attributable To Noncontrolling Interest Adjusted Balance 1	prts_StockholdersEquitySharesIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	2,771,000
Common Stock [Member]
Stockholders Equity Shares Including Portion Attributable To Noncontrolling Interest Adjusted Balance 1	prts_StockholdersEquitySharesIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	34,666,000

Amount of stockholders' equity shares including the portion attributable to noncontrolling interests, after the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

Name:	prts_StockholdersEquitySharesIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1
Namespace Prefix:	prts_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration