Capital Stock - Additional Information (Detail) (USD $)
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9 Months Ended | 0 Months Ended | |
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Sep. 30, 2014
Payment
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Nov. 18, 2014
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Dec. 31, 2013
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Class of Stock [Line Items] | |||
Common stock, shares authorized | 10,000,000us-gaap_CommonStockSharesAuthorized | 10,000,000us-gaap_CommonStockSharesAuthorized | |
Common stock, par value | $ 0.001us-gaap_CommonStockParOrStatedValuePerShare | $ 0.001us-gaap_CommonStockParOrStatedValuePerShare | |
Common stock, shares issued | 535,685us-gaap_CommonStockSharesIssued | 535,685us-gaap_CommonStockSharesIssued | |
Common stock, shares outstanding | 535,685us-gaap_CommonStockSharesOutstanding | 535,685us-gaap_CommonStockSharesOutstanding | |
Common stock, vote description | Each share of common stock is entitled to one vote. The holders of common stock are also entitled to receive dividends whenever funds are legally available and when and if declared by the Board of Directors, subject to the prior rights of all classes of stock outstanding. The holders of common stock, voting as a separate class, are entitled to elect one member of the Board of Directors. | ||
Convertible preferred stock, shares authorized | 1,860,000us-gaap_TemporaryEquitySharesAuthorized | ||
Minimum shares outstanding for voting rights | 1,000,000capn_MinimumSharesOutstandingForVotingRights | ||
Voting rights description | The holders of each share of Series A, Series B and Series C would have been entitled to voting rights equal to the number of shares of common stock into which each share of preferred stock would have been converted. So long as at least 1,000,000 shares are outstanding, the holders of Series A, Series B and Series C, voting together as a single class, would have been entitled to elect three members of the Board of Directors. The holders of common stock, voting as a separate class, would have been entitled to elect one member of the Board of Directors. The holders of Series A, Series B, Series C and common stock, voting together as a single class on an as converted basis, would have been entitled to elect the remaining members of the Board of Directors. | ||
Dividends declared or paid amount | $ 0us-gaap_DividendsPayableCurrentAndNoncurrent | ||
Conversion of stock, description | Each share of Series A, Series B and Series C would have been convertible to common stock, at the option of the holder, at any time after the date of issuance. Each share of Series A, Series B and Series C converts into that number of shares of common stock determined in accordance with the conversion ratio (i) immediately prior to the closing of a public offering of common stock provided that the offering price per share is not less than $75.60 (adjusted for recapitalizations) and gross proceeds to the Company are not less than $30,000,000 or (ii) upon the written request by the Company from the holders of two thirds of the preferred stock outstanding. | ||
Convertible preferred stock conversion terms, common stock offering minimum price per share | $ 75.60capn_ConvertiblePreferredStockConversionTermsCommonStockOfferingMinimumPricePerShare | ||
Convertible preferred stock, conversion terms, common stock offering minimum gross proceeds. | 30,000,000capn_ConvertiblePreferredStockConversionTermsCommonStockOfferingMinimumGrossProceeds | ||
Common stock conversion basis | The initial conversion ratio would have been one share of common stock for each share of preferred stock. | ||
Convertible preferred stock, earliest redemption date | Mar. 20, 2012 | ||
Convertible preferred stock, number of annual payments | 2capn_NumberOfPaymentsToRedeemConvertiblePreferredStock | ||
Convertible preferred stock, redemption price | $ 23,808,048us-gaap_TemporaryEquityAggregateAmountOfRedemptionRequirement | $ 23,808,048us-gaap_TemporaryEquityAggregateAmountOfRedemptionRequirement | |
Common stock [Member] | Subsequent event [Member] | IPO [Member] | |||
Class of Stock [Line Items] | |||
Common stock issued upon conversion of convertible preferred stock | 865,429us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember |
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Convertible preferred stock [Member] | |||
Class of Stock [Line Items] | |||
Convertible preferred stock, shares authorized | 1,860,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember |
1,860,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember |
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Series A convertible preferred stock [Member] | |||
Class of Stock [Line Items] | |||
Convertible preferred stock, shares authorized | 40,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
40,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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Non-cumulative dividends rate | $ 3.84us-gaap_PreferredStockDividendRatePerDollarAmount / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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Conversion price per share | $ 48.00us-gaap_TemporaryEquityRedemptionPricePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
$ 48.00us-gaap_TemporaryEquityRedemptionPricePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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Liquidation amount per share | $ 48.00us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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Series B convertible preferred stock [Member] | |||
Class of Stock [Line Items] | |||
Convertible preferred stock, shares authorized | 320,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
320,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
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Non-cumulative dividends rate | $ 4.61us-gaap_PreferredStockDividendRatePerDollarAmount / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
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Conversion price per share | $ 57.60us-gaap_TemporaryEquityRedemptionPricePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
$ 57.60us-gaap_TemporaryEquityRedemptionPricePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
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Liquidation amount per share | $ 57.60us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
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Series C convertible preferred stock [Member] | |||
Class of Stock [Line Items] | |||
Convertible preferred stock, shares authorized | 1,500,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember |
1,500,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember |
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Non-cumulative dividends rate | $ 1.73us-gaap_PreferredStockDividendRatePerDollarAmount / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember |
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Conversion price per share | $ 21.60us-gaap_TemporaryEquityRedemptionPricePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember |
$ 21.60us-gaap_TemporaryEquityRedemptionPricePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember |
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Liquidation amount per share | $ 21.60us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember |
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Convertible preferred stock, conversion terms, common stock offering minimum gross proceeds. No definition available.
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Convertible preferred stock, conversion terms, common stock offering minimum price per share. No definition available.
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Convertible preferred stock, earliest redemption date. No definition available.
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Minimum shares outstanding for voting rights. No definition available.
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Number of payments to redeem convertible preferred stock. No definition available.
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Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Description of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Describe the manner of settlement upon conversion and any alternative settlement methods (e.g., cash, shares, a combination of both). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Specific terms relevant to convertibility. Includes class of preferred stock and number of shares convertible into, exercise (or conversion) price or rates, dates relevant to conversion timing and events relevant to conversion. Describe also any beneficial conversion features. where convertible preferred stock with a nondetachable conversion feature is in-the-money at commitment date. For contingently convertible preferred stock, discuss the circumstances of the contingency, including the events or changes in circumstance that would cause the contingency to be met and any of the significant features necessary to understand the conversion rights and the timing of those rights. Include also an events or changes in circumstance, if any, that could adjust or change the contingency, conversion price, or number of shares, including significant terms of those changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The amount per share used to calculated dividend payments on preferred stock. No definition available.
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Description of voting rights of nonredeemable preferred stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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Aggregate amount of redemption requirements for each class or type of redeemable stock classified as temporary equity for each of the five years following the latest balance sheet date. The redemption requirement does not constitute an unconditional obligation that will be settled in a variable number of shares constituting a monetary value predominantly indexed to (a) a fixed monetary amount known at inception, (b) an amount inversely correlated with the residual value of the entity, or (c) an amount determined by reference to something other than the fair value of issuer's stock. Does not include mandatorily redeemable stock. The exception is if redemption is required upon liquidation or termination of the reporting entity. No definition available.
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The per share liquidation preference (or restrictions) of stock classified as temporary equity 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. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount to be paid per share that is classified as temporary equity by entity upon redemption. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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