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Share-Based Compensation: (Details 4)	12 Months Ended
	Sep. 30, 2015 USD ($) item	Sep. 30, 2014 USD ($)	Sep. 30, 2013 USD ($)
Share-based compensation
Share-based compensation expense	$ 447,000	$ 810,000	$ 912,000
2003 Plan | Non-employee director
Share-based compensation
Fair market value of annual award of non-vested shares	$ 40,000
Number of quarterly installments of shares awards | item	4
Share-based compensation expense	$ 0	0	0
2009 Plan
Share-based compensation
Share-based compensation expense	316,000	660,000	678,000
2009 Plan | Non-employee director
Share-based compensation
Share-based compensation expense	$ 191,847	$ 200,000	$ 200,000

X

- Definition

Represents the fair market value of annual non-vested awards under the terms of the arrangement.

+ References

No definition available.

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- Definition

Represents the number of quarterly installments of non-vested awards granted under the terms of the arrangement.

+ References

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

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