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Stockholders' Equity (Details 2) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Jun. 30, 2013
Series A Cumulative Perpetual Preferred Stock |  |  |
Preferred stock dividends paid | $ 168,575 | $ 168,575 |
Series A cumulative perpetual preferred stock |  |  |
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
Amount of sinking fund available to stockholders | 0 |  |
Redemption price per share (in dollars per share) | $ 25.25 |  |
Dividend payable monthly on preferred stock (in dollars per share) | $ 0.177083 |  |
Preferred stock dividends paid | $ 168,575 | $ 168,575 |

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