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Stockholders' Equity and Share-Based Compensation - Series A Convertible Preferred Stock (Details) (Series A Convertible Preferred Stock, USD $)
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0 Months Ended | 12 Months Ended | |||
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Apr. 05, 2013
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Mar. 25, 2013
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Jan. 03, 2015
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Dec. 28, 2013
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Mar. 25, 2013
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Series A Convertible Preferred Stock
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Series A convertible preferred stock, shares authorized |
4,150,000us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
4,150,000us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
4,150,000us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
4,150,000us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Aggregate shares to be sold |
4,150,000prts_MaximumNumberOfSharesForIssuanceUnderSecuritiesPurchaseAgreement / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
4,150,000prts_MaximumNumberOfSharesForIssuanceUnderSecuritiesPurchaseAgreement / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Series A convertible preferred stock, par value |
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Preferred stock purchase price per share |
$ 1.45us-gaap_SharesIssuedPricePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
$ 1.45us-gaap_SharesIssuedPricePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Preferred stock purchase, amount |
$ 6,017,000prts_MaximumValueOfSharesForIssuanceUnderSecuritiesPurchaseAgreement / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Preferred stock sold |
150,000us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
4,000,000us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Aggregate proceeds of preferred stock |
217,000us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
5,800,000us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Issuance costs incurred to company |
847,000prts_StockIssuanceCosts / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Conversion rate of common stock for each share of Series A preferred stock |
1prts_PreferredStockConvertibleNumberOfEquityInstruments / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Consecutive trading days for calculating weighted average price for the common stock | 30 days | ||||
| Minimum common stock price for consecutive thirty trading days for stock conversion |
$ 4.35prts_MinimumCommonStockPriceForConsecutiveThirtyTradingDaysForStockConversion / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Percentage of changes of control of company and sales or other dispositions by company (more than) |
50.00%prts_PercentageOfChangesOfControlAndAssetsSaleConsideredAsLiquidationEvent / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Amount per share to series A preferred in case of liquidation |
$ 1.45us-gaap_PreferredStockLiquidationPreference / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
$ 1.45us-gaap_PreferredStockLiquidationPreference / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Preferred stock annual dividend rate |
$ 0.058us-gaap_PreferredStockDividendRatePerDollarAmount / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Cash dividends on amended credit |
400,000prts_MaximumCashDividendAllowed / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Common stock dividends during the period |
0us-gaap_DividendsPayableCurrent / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
60,000us-gaap_DividendsPayableCurrent / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Dividends |
$ 240,000us-gaap_DividendsPreferredStockStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Issuance of common stock in connection with preferred stock dividends (in shares) |
83,000us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
24,000us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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- Definition
Consecutive trading days for calculating share price. No definition available.
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| X | ||||||||||
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- Definition
Maximum cash dividend allowed. No definition available.
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| X | ||||||||||
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- Definition
Maximum number of shares for issuance under securities purchase agreement. No definition available.
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| X | ||||||||||
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- Definition
Maximum value of shares for issuance under securities purchase agreement. No definition available.
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| X | ||||||||||
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- Definition
Minimum common stock price for consecutive thirty trading days for stock conversion. No definition available.
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- Definition
Percentage of changes of control and assets sale considered as liquidation event No definition available.
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| X | ||||||||||
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- Definition
Preferred stock convertible number of equity instruments. No definition available.
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| X | ||||||||||
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- Definition
Stock issuance costs. No definition available.
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount per share used to calculated dividend payments on preferred stock. No definition available.
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| X | ||||||||||
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- Definition
The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Amount per share or per unit of equity securities issued by non-development stage entity. No definition available.
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| X | ||||||||||
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- Definition
Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross value of stock issued during the period upon the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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