Subsequent Events Subsequent Events (Details) |
3 Months Ended | |||
|---|---|---|---|---|
Nov. 01, 2017 |
Mar. 31, 2019 |
Feb. 08, 2019
shares
|
Dec. 31, 2018
shares
|
|
| Subsequent Event [Line Items] | ||||
| Number of shares authorized to be sold under equity distribution agreement (in shares) | 10,000,000 | |||
| Number of common shares issued under equity distribution agreement and outstanding as of period-end (in shares) | 3,792,935 | |||
| Reverse stock split, conversion ratio | 0.50 | |||
| Subsequent Event [Member] | ||||
| Subsequent Event [Line Items] | ||||
| Number of shares authorized to be sold under equity distribution agreement (in shares) | 35,000,000 | |||
| Percentage of gross proceeds compensated to sales agent | 2.00% |
| X | ||||||||||
- Definition The number of shares authorized to be sold under an at-the-market Equity Distribution Agreement. No definition available.
|
| X | ||||||||||
- Definition Percentage of gross proceeds from an at-the-market offering compensated to sales agent. No definition available.
|
| X | ||||||||||
- Definition Number of shares issued and outstanding as of period-end from an at-the-market common stock offering. No definition available.
|
| X | ||||||||||
- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| 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
|