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Share-Based Compensation: (Details 4) (USD $) | 12 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2011
Share-based compensation |  |  |
Share-based compensation expense | $ 912,000 | $ 645,000 | $ 371,000
Restricted Plan | Non-employee directors |  |  |
Share-based compensation |  |  |
Fair market value of annual award of non-vested shares | 40,000 |  |
Number of quarterly installments of shares awards | 4 |  |
Share-based compensation expense | 0 | 0 | 0
2009 Plan |  |  |
Share-based compensation |  |  |
Share-based compensation expense | 678,000 | 377,000 | 54,000
2009 Plan | Non-employee directors |  |  |
Share-based compensation |  |  |
Share-based compensation expense | $ 200,000 | $ 200,000 | $ 200,000

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- Definition Represents the fair market value of annual non-vested awards under the terms of the arrangement. + References No definition available. + Details
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- Definition Represents the number of quarterly installments of non-vested awards granted under the terms of the arrangement. + References No definition available. + Details
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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 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: 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 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 + Details
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