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Stockholders' Equity - Common Stock Dividends and Buyback Program (Details) - USD ($)	7 Months Ended	9 Months Ended		28 Months Ended
	Dec. 31, 2015	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	May 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock outstanding		33,171,514		33,171,514
Cash dividends to common stockholders		$ 8,286,486	$ 6,116,323
Common Stock | 2015 Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized amount to be repurchased					$ 5,000,000
Value of shares repurchased	$ 1,609,008	$ 395,550	$ 459,858
Number of treasury shares acquired	265,762	55,018	73,455	0
Average cost per share (in dollars per share)	$ 6.05	$ 7.19	$ 6.26

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Amount of stock repurchase plan authorized.

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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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