Subsequent Events - ATM Program (Details) - At-the-Market Program - USD ($) $ / shares in Units, $ in Millions |
2 Months Ended | 12 Months Ended | |
|---|---|---|---|
Oct. 13, 2017 |
Feb. 20, 2018 |
Dec. 31, 2017 |
|
| Subsequent Event [Line Items] | |||
| Sale of stock, number of shares issued in transaction (in shares) | 121,875 | 544,075 | |
| Sale of stock (in dollars per share) | $ 13.04 | ||
| Gross proceeds from issuance of common stock | $ 7.1 | ||
| Subsequent Event | |||
| Subsequent Event [Line Items] | |||
| Sale of stock, number of shares issued in transaction (in shares) | 96,590 | ||
| Sale of stock (in dollars per share) | $ 13.19 | ||
| Gross proceeds from issuance of common stock | $ 1.3 |
| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. No definition available.
|
| X | ||||||||||
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. No definition available.
|
| X | ||||||||||
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|