Shareholders' Equity	6 Months Ended
Mar. 31, 2018
Equity [Abstract]
Shareholders' Equity	NOTE 6 – SHAREHOLDERS’ EQUITY Our authorized stock as of March 31, 2018 consisted of 192,039,750 shares of common stock, of which 78,846,177 shares were issued and outstanding, 12,400,000 authorized shares of 6.125% Series C Cumulative Redeemable Preferred Stock, $0.01 par value per share (6.125% Series C Preferred Stock), of which 11,095,376 were issued and outstanding, and 200,000,000 authorized shares of Excess Stock, $0.01 par value per share, of which none were issued or outstanding. Common Stock On October 2, 2017, our Board of Directors approved a 6.25% increase in our quarterly common stock dividend, raising it to $0.17 per share from $0.16 per share, representing our second dividend increase in three years. These two dividend raises represent a total increase of 13%. The increased dividend represents an annualized dividend rate of $0.68 per share. We have maintained or increased our cash dividend for 26 consecutive years. We raised $49,042,921 (including dividend reinvestments of $6,045,930) from the issuance of 3,161,320 shares of common stock under our DRIP during the six months ended March 31, 2018. During the six months ended March 31, 2018, we paid $26,319,599 in total cash dividends, or $0.17 per share, to common shareholders, of which $6,045,930 was reinvested in the DRIP. On April 2, 2018, our Board of Directors declared a dividend of $0.17 per share to be paid June 15, 2018 to common shareholders of record as of the close of business on May 15, 2018. On January 16, 2018, the Board of Directors reaffirmed our Share Repurchase Program that authorizes us to purchase up to $10,000,000 in the aggregate of our common stock. We may repurchase our shares from time to time if, in the opinion of the Board of Directors, such acquisition is advantageous to us. No shares were repurchased during the six months ended March 31, 2018 and, as of March 31, 2018, we do not own any of our own shares. 6.125% Series C Cumulative Redeemable Preferred Stock During the six months ended March 31, 2018, we paid $8,301,342 in Preferred Dividends, or $0.765625 per share, on our outstanding 6.125% Series C Preferred Stock for the period September 1, 2017 through February 28, 2018. As of March 31, 2018, we have accrued Preferred Dividends of $1,415,816 covering the period March 1, 2018 to March 31, 2018. Dividends on the 6.125% Series C Preferred Stock are cumulative and payable quarterly at an annual rate of $1.53125 per share. The 6.125% Series C Preferred Stock has no maturity date and will remain outstanding indefinitely unless redeemed or otherwise repurchased. Except in limited circumstances relating to our qualification as a REIT, or in connection with a change of control, the 6.125% Series C Preferred Stock is not redeemable prior to September 15, 2021. On and after September 15, 2021, at any time, and from time to time, the 6.125% Series C Preferred Stock will be redeemable in whole, or in part, at our option, at a cash redemption price of $25.00 per share, plus all accrued and unpaid dividends (whether or not declared) to, but not including, the date of redemption. On April 2, 2018, our Board of Directors declared a dividend of $0.3828125 per share to be paid June 15, 2018 to the 6.125% Series C Preferred shareholders of record as of the close of business on May 15, 2018. On June 29, 2017, we entered into an At-The-Market Preferred Equity Program (Preferred Stock ATM Program) with FBR Capital Markets & Co. in which we may, from time to time, offer and sell additional shares of our 6.125% Series C Preferred Stock, with a liquidation preference of $25.00 per share, having an aggregate sales price of up to $100,000,000. We began selling shares through the Preferred Stock ATM Program on July 3, 2017. During the six months ended March 31, 2018, we sold 1,255,931 shares under our Preferred Stock ATM Program at a weighted average price of $25.09 per share, and generated net proceeds, after offering expenses, of approximately $30,942,000. As of March 31, 2018, 11,095,376 shares of the 6.125% Series C Preferred Stock were issued and outstanding.

Shareholders' Equity

6 Months Ended

Mar. 31, 2018

NOTE 6 – SHAREHOLDERS’ EQUITY

Our authorized stock as of March 31, 2018 consisted of 192,039,750 shares of common stock, of which 78,846,177 shares were issued and outstanding, 12,400,000 authorized shares of 6.125% Series C Cumulative Redeemable Preferred Stock, $0.01 par value per share (6.125% Series C Preferred Stock), of which 11,095,376 were issued and outstanding, and 200,000,000 authorized shares of Excess Stock, $0.01 par value per share, of which none were issued or outstanding.

Common Stock

On October 2, 2017, our Board of Directors approved a 6.25% increase in our quarterly common stock dividend, raising it to $0.17 per share from $0.16 per share, representing our second dividend increase in three years. These two dividend raises represent a total increase of 13%. The increased dividend represents an annualized dividend rate of $0.68 per share. We have maintained or increased our cash dividend for 26 consecutive years.

We raised $49,042,921 (including dividend reinvestments of $6,045,930) from the issuance of 3,161,320 shares of common stock under our DRIP during the six months ended March 31, 2018. During the six months ended March 31, 2018, we paid $26,319,599 in total cash dividends, or $0.17 per share, to common shareholders, of which $6,045,930 was reinvested in the DRIP.

On April 2, 2018, our Board of Directors declared a dividend of $0.17 per share to be paid June 15, 2018 to common shareholders of record as of the close of business on May 15, 2018.

On January 16, 2018, the Board of Directors reaffirmed our Share Repurchase Program that authorizes us to purchase up to $10,000,000 in the aggregate of our common stock. We may repurchase our shares from time to time if, in the opinion of the Board of Directors, such acquisition is advantageous to us. No shares were repurchased during the six months ended March 31, 2018 and, as of March 31, 2018, we do not own any of our own shares.

6.125% Series C Cumulative Redeemable Preferred Stock

During the six months ended March 31, 2018, we paid $8,301,342 in Preferred Dividends, or $0.765625 per share, on our outstanding 6.125% Series C Preferred Stock for the period September 1, 2017 through February 28, 2018. As of March 31, 2018, we have accrued Preferred Dividends of $1,415,816 covering the period March 1, 2018 to March 31, 2018. Dividends on the 6.125% Series C Preferred Stock are cumulative and payable quarterly at an annual rate of $1.53125 per share. The 6.125% Series C Preferred Stock has no maturity date and will remain outstanding indefinitely unless redeemed or otherwise repurchased. Except in limited circumstances relating to our qualification as a REIT, or in connection with a change of control, the 6.125% Series C Preferred Stock is not redeemable prior to September 15, 2021. On and after September 15, 2021, at any time, and from time to time, the 6.125% Series C Preferred Stock will be redeemable in whole, or in part, at our option, at a cash redemption price of $25.00 per share, plus all accrued and unpaid dividends (whether or not declared) to, but not including, the date of redemption. On April 2, 2018, our Board of Directors declared a dividend of $0.3828125 per share to be paid June 15, 2018 to the 6.125% Series C Preferred shareholders of record as of the close of business on May 15, 2018.

On June 29, 2017, we entered into an At-The-Market Preferred Equity Program (Preferred Stock ATM Program) with FBR Capital Markets & Co. in which we may, from time to time, offer and sell additional shares of our 6.125% Series C Preferred Stock, with a liquidation preference of $25.00 per share, having an aggregate sales price of up to $100,000,000. We began selling shares through the Preferred Stock ATM Program on July 3, 2017. During the six months ended March 31, 2018, we sold 1,255,931 shares under our Preferred Stock ATM Program at a weighted average price of $25.09 per share, and generated net proceeds, after offering expenses, of approximately $30,942,000.

As of March 31, 2018, 11,095,376 shares of the 6.125% Series C Preferred Stock were issued and outstanding.