Cash dividends (Details) - USD ($)	3 Months Ended
Dec. 31, 2016	Oct. 14, 2016	Sep. 30, 2016
Preference share dividends [Abstract]
Preferred stock, issued (in shares)	448,545		448,705
Preferred stock, outstanding (in shares)	448,545		448,705
Preferred stock, par value (in dollars per share)	$ 0.10		$ 0.10
Series A Convertible Preferred Stock [Member]
Preference share dividends [Abstract]
Preferred stock, issued (in shares)	448,545
Preferred stock, outstanding (in shares)	448,545
Preferred stock, par value (in dollars per share)	$ 24
Percentage of cumulative annual dividend	4.00%
Semi annual dividend		$ 215,378
Dividend payable	Oct. 14, 2016
Next semi-annual dividend payable	Apr. 14, 2017

Date the declared dividend will be paid, in CCYY-MM-DD format.

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- Definition

The Semi annual dividend related to Series A Convertible Preferred Stock offering rights under the registration statement filed.

+ References

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Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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The percentage rate used to calculate dividend payments on preferred stock.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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