Net Loss Per Common Share - Narrative (Details) - $ / shares |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Jun. 09, 2017 |
Dec. 09, 2015 |
|
| 1.75% convertible senior notes due 2020 | Convertible debt | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument, conversion price (in dollars per share) | $ 16.42 | ||||
| Unrealized gain | 1.75% | 1.75% | 1.75% | ||
| Series A convertible preferred stock | |||||
| Debt Instrument [Line Items] | |||||
| Agreement to sell shares (in shares) | 480,000 | 480,000 | |||
| Shares issued, shares | 307,500 | 480,000 | |||
| Conversion price (in dollars per share) | $ 10.50 | $ 10.50 | |||
| Series A convertible preferred stock | Initial closing | |||||
| Debt Instrument [Line Items] | |||||
| Agreement to sell shares (in shares) | 172,500 |
| X | ||||||||||
- Definition Preferred Stock, Initial Conversion Price Per Share No definition available.
|
| X | ||||||||||
- Definition The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- 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.
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of securities classified as temporary equity that have been allocated to investors to buy. 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
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|