Equity and Mezzanine Equity - Additional Information (Details)
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1 Months Ended |
6 Months Ended |
12 Months Ended |
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Mar. 31, 2017
shares
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Jan. 31, 2018
shares
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Dec. 31, 2016
shares
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Dec. 31, 2018
USD ($)
director
holder
quarter
$ / shares
shares
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Dec. 31, 2017
USD ($)
$ / shares
shares
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Dec. 31, 2016
USD ($)
shares
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Jun. 28, 2018
$ / shares
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Mar. 31, 2018
$ / shares
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Mar. 30, 2017
shares
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Dec. 01, 2016
$ / shares
shares
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Sep. 30, 2016
$ / shares
shares
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Jul. 07, 2016
USD ($)
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Jun. 30, 2016
shares
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Jun. 15, 2016
shares
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Apr. 08, 2016
$ / shares
shares
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Dec. 31, 2015
shares
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Jun. 30, 2015
shares
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Jun. 04, 2015
shares
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Apr. 29, 2014
$ / shares
shares
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Jun. 30, 2013
shares
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Equity [Line Items] |
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Common stock outstanding (in shares) |
8,588,470
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9,511,464
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8,744,189
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68,707,755
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Reverse stock split conversion ratio |
0.125
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Shares of common stock authorized (in shares) |
18,750,000
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18,750,000
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18,750,000
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150,000,000
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Fractional shares issued in connection with reverse stock split (in shares) |
0
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Authority to issue stock (in shares) |
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33,750,000
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Common stock, par value (in dollars per share) | $ / shares |
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$ 0.01
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$ 0.01
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Ownership interest of operating partnership |
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98.33%
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Units to stock conversion ratio |
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1
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Common units outstanding (in shares) |
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13,870,680
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11,226,868
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Preferred stock, liquidation preference per share (in dollars per share) | $ / shares |
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$ 1,000
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Preferred Stock, Liquidation Preference Value | $ |
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$ 562,000
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Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount | $ |
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$ 50,000,000
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Convertible Preferred Stock, Terms of Conversion |
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20 days
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Preferred Stock, Redemption Price Per Share | $ / shares |
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$ 25.00
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Preferred Stock, Amount of Preferred Dividends in Arrears | $ |
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$ 3,040,000
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Trust Owning [Member] |
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Equity [Line Items] |
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Common units outstanding (in shares) |
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14,105,712
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10,591,850
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Minimum [Member] |
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Equity [Line Items] |
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Shares of common stock authorized (in shares) |
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9,375,000
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Minimum [Member] | Exchange of Stock for Stock [Member] |
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Equity [Line Items] |
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Shares of common stock authorized (in shares) |
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1,875,000
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Maximum [Member] | Exchange of Stock for Stock [Member] |
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Equity [Line Items] |
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Shares of common stock authorized (in shares) |
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18,750,000
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18,750,000
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9,375,000
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Preferred stock, shares authorized (in shares) |
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15,000,000
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Line of Credit [Member] |
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Equity [Line Items] |
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Private placement transaction, common stock shares under warrants issued |
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750,000
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750,000
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Private placement transaction, exercise price of warrants (in usd per share) | $ / shares |
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$ 0.0001
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Preferred Stock | Private Placement [Member] |
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Equity [Line Items] |
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Preferred stock cumulative dividend rate per annum |
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9.00%
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Percentage of price at which common stock is sold in secondary offering |
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103.00%
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Common Stock |
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Equity [Line Items] |
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Common stock outstanding (in shares) |
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8,503,819
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9,511,464
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8,744,189
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8,503,819
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8,282,459
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Series D Cumulative Convertible Preferred Stock |
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Equity [Line Items] |
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Preferred stock, shares authorized (in shares) |
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4,000,000
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Preferred stock shares redeemed (in shares) |
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3,600,636
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2,237,000
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Cumulative Convertible Preferred Stock, Shares Issued (in shares) |
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3,600,636
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2,237,000
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Temporary Equity, Liquidation Preference | $ |
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$ 91,980,000
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$ 55,930,000
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Shares of convertible preferred stock authorized (in shares) |
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4,000,000
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4,000,000
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Series D Cumulative Convertible Preferred Stock | Public Offering [Member] |
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Equity [Line Items] |
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Sale of Stock, Number of Shares Issued in Transaction |
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1,363,636
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Series D Preferred Stock |
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Equity [Line Items] |
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Preferred Stock, Shares Issued |
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2,237,000
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2,237,000
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637,000
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1,600,000
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Preferred stock outstanding (in shares) |
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2,237,000
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3,600,636
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2,237,000
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2,237,000
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Preferred stock, liquidation preference per share (in dollars per share) | $ / shares |
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$ 25.00
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$ 25.00
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Preferred Stock, Redemption Price Per Share | $ / shares |
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$ 25.00
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Proceeds from issuance of Series B convertible preferred stock | $ |
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$ 21,160,000
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$ 52,400,000
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Share Price | $ / shares |
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$ 24.00
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$ 25.00
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Preferred Stock, Initial Liquidation Preference Per Share | $ / shares |
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$ 2.1875
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Preferred Stock, Dividend Over Initial Rate, Percentage |
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2.00%
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Secondary offering common stock price per share (in usd per share) | $ / shares |
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$ 16.96
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Ratio of Asset Coverage to Total Debt |
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200.00%
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Preferred Stock, Period To Pay Dividends After Payment Date |
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3 days
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Preferred Stock, Liquidation Preference Per Share Per Annum | $ / shares |
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$ 0.50
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Preferred Stock, Minimum Consecutive Quarterly Periods for Dividends in Arrears | quarter |
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6
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Preferred Stock, Increase in Number or Holders of Shares | holder |
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2
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Number of Additional Directors | director |
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2
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Preferred Stock, Percentage of Holders of Shares Outstanding |
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20.00%
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Preferred Stock Redemption Discount | $ |
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$ 591,000
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$ 723,000
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$ 0
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Preferred Stock, Amount of Preferred Dividends in Arrears | $ |
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$ 1,970,000
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Temporary Equity, Liquidation Preference Per Share | $ / shares |
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$ 25.00
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$ 25.00
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Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | $ / shares |
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$ 0.55
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Series D Preferred Stock | Public Offering [Member] |
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Equity [Line Items] |
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Sale of Stock, Price Per Share | $ / shares |
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$ 16.50
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Series D Preferred Stock | Minimum [Member] |
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Equity [Line Items] |
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Preferred stock cumulative dividend rate per annum |
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8.75%
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Series D Preferred Stock | Maximum [Member] |
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Equity [Line Items] |
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Preferred stock cumulative dividend rate per annum |
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14.00%
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Redeemable Preferred Stock [Member] |
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Equity [Line Items] |
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Preferred stock shares redeemed (in shares) |
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562
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Series B Preferred Stock |
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Equity [Line Items] |
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Preferred stock, shares authorized (in shares) |
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5,000,000
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5,000,000
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Preferred Stock, Shares Issued |
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1,875,748
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1,875,848
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Preferred stock outstanding (in shares) |
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1,871,244
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1,875,748
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1,875,848
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1,871,244
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Preferred Stock, Liquidation Preference Value | $ |
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$ 46,900,000
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$ 46,900,000
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Series B Preferred Stock | Preferred Stock |
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Equity [Line Items] |
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Preferred stock outstanding (in shares) |
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1,871,244
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1,875,748
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1,875,848
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1,871,244
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729,119
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Issuance of stocks, net of expenses (in shares) |
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4,604
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1,142,225
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Series A Preferred Stock |
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Equity [Line Items] |
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Preferred stock, shares authorized (in shares) |
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4,500
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4,500
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|
|
|
|
|
Preferred Stock, Shares Issued |
|
|
|
562
|
562
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred stock outstanding (in shares) |
|
|
|
562
|
562
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, Amount of Preferred Dividends in Arrears | $ |
|
|
|
$ 13,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | $ / shares |
|
|
|
$ 22.50
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Series A Preferred Stock | Preferred Stock |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Equity [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred stock outstanding (in shares) |
|
|
562
|
562
|
562
|
562
|
|
|
|
|
|
|
|
|
|
562
|
|
|
|
|
Common Stock |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Equity [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Private placement transaction, common stock shares under warrants issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,986,600
|
|
Warrants issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.125
|
|
Private placement transaction, exercise price of warrants (in usd per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 44
|
|
Common Stock | 2015 Incentive Plan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Equity [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Number of shares authorized under Share Incentive Plan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
125,000
|
|
|
Shares available for issuance under the Company’s Share Incentive Plan (in shares) |
|
|
|
41,104
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock | 2016 Incentive Plan |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Equity [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Number of shares authorized under Share Incentive Plan |
|
|
|
|
|
|
|
|
|
|
|
|
|
625,000
|
|
|
|
|
|
|
Shares available for issuance under the Company’s Share Incentive Plan (in shares) |
|
|
|
314,514
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Series B Convertible Preferred Stock [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Equity [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred stock, shares authorized (in shares) |
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, Shares Issued |
|
|
|
|
|
|
|
|
|
|
|
|
729,119
|
|
|
|
|
|
|
|
Preferred stock outstanding (in shares) |
|
|
|
1,875,748
|
1,875,848
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares |
|
|
|
$ 25.00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, Liquidation Preference Value | $ |
|
|
|
$ 46,900,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred stock cumulative dividend rate per annum |
|
|
|
9.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of stocks, net of expenses (in shares) |
|
|
1,142,225
|
|
4,604
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Adjusted conversion price of preferred to common (in usd per share) | $ / shares |
|
|
|
$ 58
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, Redemption Price Per Share | $ / shares |
|
|
|
$ 40.00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Proceeds from issuance of Series B convertible preferred stock | $ |
|
|
|
|
$ 96,000
|
$ 23,400,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, Amount of Preferred Dividends in Arrears | $ |
|
|
|
$ 1,060,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | $ / shares |
|
|
|
$ 0.56
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Series B Convertible Preferred Stock [Member] | Private Placement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Equity [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of stocks, net of expenses (in shares) |
|
|
|
1,146,829
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|