Stockholders' Equity - Series A Cumulative Perpetual Preferred Stock (Details) - USD ($)	9 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Jun. 30, 2015
Series A Cumulative Perpetual Preferred Stock
Cash dividends to preferred stockholders	$ 505,726	$ 505,726
Preferred
Series A Cumulative Perpetual Preferred Stock
Percentage of cash dividends treated as qualified dividend income			100.00%
Common Stock
Series A Cumulative Perpetual Preferred Stock
Percentage of cash dividends treated as qualified dividend income			14.00%
Percentage of cash dividends treated as return of capital			86.00%
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%
Amount of sinking fund available to stockholders	$ 0
Preferred stock, liquidation preference (in dollars per share)	$ 25.00		$ 25.00
Dividend payable monthly on preferred stock (in dollars per share)	$ 0.177083
Cash dividends to preferred stockholders	$ 505,726	$ 505,726