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Stockholders' Equity - Treasury Shares (Details) - USD ($)	1 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2015	Jun. 30, 2019	Jun. 30, 2018
Equity, Class of Treasury Stock [Line Items]
Total cost of treasury shares acquired			$ 156,791	$ 571,083
Common Stock
Equity, Class of Treasury Stock [Line Items]
Number of treasury shares acquired (shares)			18,424	73,208
Common Stock | 2015 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Number of treasury shares acquired (shares)	430	266,192	18,424	73,208
Average cost per share (in USD per share)	$ 6.07	$ 6.05	$ 8.51	$ 7.80
Total cost of treasury shares acquired		$ 1,611,620	$ 156,791	$ 571,083

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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