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Subsequent Event (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2018 | Dec. 31, 2017
Subsequent Event [Member] | Underwriting Agreement [Member] |  |
Subsequent Event [Line Items] |  |
Shares issued | 14,375,000 |
Price per share | $ 2.40 |
Commissions | 4.00% |
Proceeds from issuance of common stock from offering, net of issuance costs | $ 32.8 |
Notes [Member] |  |
Subsequent Event [Line Items] |  |
Holders may elect to receive net proceeds from financing activities, percentage |  | 25.00%

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- 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. + References No definition available. + Details
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- Details
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