Redeemable Convertible Preferred Stock - Additional Information (Detail) - USD ($) |
3 Months Ended | |
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Mar. 31, 2017 |
Dec. 31, 2016 |
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Class of Stock [Line Items] | ||
Convertible preferred stock, public offering gross proceeds for automatic conversion | $ 15,000,000 | |
Convertible preferred stock conversion terms | In the event of a conversion to common stock, the holders of the redeemable convertible preferred stock will receive one share of the Company's common stock for each share of redeemable convertible preferred stock converted, multiplied by (i) the share's original issuance price plus the liquidation preference of such share divided by (ii) the share's original issue price, with cash paid for any fractional shares. | |
Series B Redeemable Convertible Preferred Stock [Member] | ||
Class of Stock [Line Items] | ||
Liquidation preference | $ 5.98 | $ 5.86 |
Debt beneficial conversion feature | $ 226,000 | |
Debt amortization of discount | $ 57,000 | |
Preferred stock conversion ratio | 0.74 | 0.73 |
Series A Redeemable Convertible Preferred Stock [Member] | ||
Class of Stock [Line Items] | ||
Liquidation preference | $ 2.17 | $ 2.14 |
Debt beneficial conversion feature | $ 328,000 | |
Debt amortization of discount | $ 82,000 | |
Preferred stock conversion ratio | 0.74 | 0.73 |
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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- 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. No definition available.
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- Definition Number of shares issued for each share of convertible preferred stock that is converted. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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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- Definition Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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- Definition Convertible preferred stock, automatic conversion terms, common stock offering minimum gross proceeds. No definition available.
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