Shareholders' Equity (Tables)

12 Months Ended

Sep. 30, 2016

Dividends Payable [Line Items]

Schedule of Shares Issued in Connection with Dividend Reinvestment and Stock Purchase Plan

Amounts received in connection with the DRIP and shares issued in connection with the DRIP for the fiscal years ended September 30, 2016, 2015 and 2014 were as follows:

	2016		2015		2014
Amounts received	$	72,175,797	$	48,404,556	$	38,090,334
Less: Dividend reinvestments		8,369,146		8,489,169		7,624,528
Amounts received, net	$	63,806,651	$	39,915,387	$	30,465,806
Number of Shares Issued		6,515,750		4,975,500		4,296,075

Summary of Cash Distributions to Common Shareholders

The following cash distributions were paid to common shareholders during the years ended September 30, 2016, 2015 and 2014:

	2016				2015				2014
Quarter Ended	Amount		Per Share		Amount		Per Share		Amount		Per Share
December 31	$	10,083,160	$	0.16	$	8,598,414	$	0.15	$	6,815,308	$	0.15
March 31		10,384,295		0.16		8,765,446		0.15		7,030,326		0.15
June 30		10,647,332		0.16		8,952,767		0.15		7,182,521		0.15
September 30		10,919,396		0.16		9,205,500		0.15		8,503,275		0.15
	$	42,034,183	$	0.64	$	35,522,127	$	0.60	$	29,531,430	$	0.60

Series A Preferred Stock [Member]

Dividends Payable [Line Items]

Schedule of Dividend Declared and Paid On Preferred Stock

The Company’s Board of Directors have declared and the Company has paid the following dividends on the 7.625% Series A Preferred Stock for the fiscal years ended September 30, 2016, 2015 and 2014:

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
10/1/15	11/16/15	12/15/15	$	1,019,725	$	0.4765625
1/19/16	2/16/16	3/15/16		1,019,726		0.4765625
4/5/16	5/16/16	6/15/16		1,019,725		0.4765625
7/1/16	8/15/16	9/15/16		1,019,726		0.4765625
			$	4,078,902	$	1.90625

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
10/1/14	11/17/14	12/15/14	$	1,019,725	$	0.4765625
1/21/15	2/17/15	3/16/15		1,019,726		0.4765625
4/1/15	5/15/15	6/15/15		1,019,725		0.4765625
7/1/15	8/17/15	9/15/15		1,019,726		0.4765625
			$	4,078,902	$	1.90625

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
10/1/13	11/15/13	12/16/13	$	1,019,725	$	0.4765625
1/15/14	2/18/14	3/17/14		1,019,726		0.4765625
4/1/14	5/15/14	6/16/14		1,019,725		0.4765625
7/1/14	8/15/14	9/15/14		1,019,726		0.4765625
			$	4,078,902	$	1.90625

Series B Preferred Stock [Member]

Dividends Payable [Line Items]

Schedule of Dividend Declared and Paid On Preferred Stock

The Company’s Board of Directors have declared and the Company has paid the following dividends on the Series B Preferred Stock for the year ended September 30, 2016, 2015 and 2014:

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
10/1/15	11/16/15	12/15/15	$	1,132,032	$	0.4921875
1/19/16	2/16/16	3/15/16		1,132,033		0.4921875
4/5/16	5/16/16	6/15/16		1,132,032		0.4921875
7/1/16	8/15/16	9/15/16		1,132,033		0.4921875
			$	4,528,130	$	1.96875

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
10/1/14	11/17/14	12/15/14	$	1,132,032	$	0.4921875
1/21/15	2/17/15	3/16/15		1,132,033		0.4921875
4/1/15	5/15/15	6/15/15		1,132,032		0.4921875
7/1/15	8/17/15	9/15/15		1,132,033		0.4921875
			$	4,528,130	$	1.96875

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
10/1/13	11/15/13	12/16/13	$	1,132,032	$	0.4921875
1/15/14	2/18/14	3/17/14		1,132,033		0.4921875
4/1/14	5/15/14	6/16/14		1,132,032		0.4921875
7/1/14	8/15/14	9/15/14		1,132,033		0.4921875
			$	4,528,130	$	1.96875