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Stock appreciation rights (''SARs'') (Details 1)	Sep. 30, 2015 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2015	$ 362,031
2016	1,027,447
2017	333,670
2018	106,198
Total	$ 1,829,346

X

- Definition

Unrecognized cost of unvested share-based compensation awards yet to be recognized in year two.

+ References

No definition available.

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X

- Definition

Unrecognized cost of unvested share-based compensation awards yet to be recognized in year four.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards yet to be recognized in year three.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards yet to be recognized in year two.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (i)



-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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