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Stockholders' Equity - Series A Cumulative Perpetual Preferred Stock (Details) - USD ($) |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2016 | Mar. 31, 2017 | Mar. 31, 2016 | Jun. 30, 2016
Series A Cumulative Perpetual Preferred Stock |  |  |  |  |
Consideration paid to preferred shareholders at redemption at liquidation preference |  |  | $ 7,932,975 |  |
Cash dividends to preferred stockholders |  |  | 250,990 | $ 505,726 |
Preferred |  |  |  |  |
Series A Cumulative Perpetual Preferred Stock |  |  |  |  |
Consideration paid to preferred shareholders at redemption at liquidation preference |  |  | $ 317 |  |
Series A cumulative perpetual preferred stock |  |  |  |  |
Series A Cumulative Perpetual Preferred Stock |  |  |  |  |
Preferred stock dividend rate (as a percent) |  |  | 8.50% |  | 8.50%
Preferred stock, liquidation preference (in dollars per share) |  |  |  |  | $ 25.00
Series A cumulative perpetual preferred stock | Preferred |  |  |  |  |
Series A Cumulative Perpetual Preferred Stock |  |  |  |  |
Number of shares sold of series A cumulative perpetual preferred stock |  | 317,319 |  |  |
Preferred stock dividend rate (as a percent) |  | 8.50% | 8.50% |  |
Preferred stock, liquidation preference (in dollars per share) |  | $ 25.00 | $ 25.00 |  |
Redemption price per share (in dollars per share) |  | $ 25.082639 |  |  |
Consideration paid to preferred shareholders at redemption at liquidation preference |  | $ 7,932,975 |  |  |
Payments for dividends accrued | [1] | 82,415 |  |  |
Deemed dividend |  | $ 1,002,440 |  |  |
Amount of sinking fund available to stockholders |  |  | $ 0 |  |
Dividend payable monthly on preferred stock (in dollars per share) |  |  | $ 0.177083 |  |
Cash dividends to preferred stockholders |  |  | $ 250,990 | $ 505,726 |
[1] | Includes the monthly dividend for October 2016 declared by the Company.

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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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