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Subsequent Event (Details) - Series B Preferred Stock [Member] - USD ($) $ / shares in Units, $ in Millions | Apr. 05, 2017 | Mar. 07, 2017 | Apr. 26, 2016
--- | --- | --- | ---
Subsequent Event [Line Items] |  |  |
Issuance of common stock (in shares) |  | 2,000,000 | 290,850
Issuance of preferred stock (in dollars per share) |  | $ 20.19 | $ 17.24
Proceeds from issuance of stock, net of discounts and expenses |  | $ 38.4 | $ 4.2
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Issuance of preferred stock (in dollars per share) | $ 20.19 |  |
Subsequent Event [Member] | Over-Allotment Option [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Issuance of common stock (in shares) | 100,000 |  |
Proceeds from issuance of stock, net of discounts and expenses | $ 1.9 |  |

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- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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