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Stock-Based Compensation (Details Textual) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  | 12 Months Ended
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Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 Stock options [Member] | Sep. 30, 2011 Stock options [Member] | Sep. 30, 2012 Restricted shares [Member] Maximum [Member] | Sep. 30, 2012 Restricted shares [Member] Minimum [Member] | Sep. 30, 2012 2007 Plan [Member] | Sep. 30, 2011 2007 Plan [Member] | Sep. 30, 2012 2007 Plan [Member] Maximum [Member] | Sep. 30, 2012 2007 Plan [Member] Minimum [Member] | Sep. 30, 2012 2007 Plan [Member] Performance shares awarded during fiscal 2012 [Member] | Sep. 30, 2011 2007 Plan [Member] Performance shares awarded during fiscal 2011 [Member] | Sep. 30, 2010 2007 Plan [Member] Performance shares awarded during fiscal 2010 [Member]
Stock-Based Compensation (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options may be awarded |  |  |  |  |  |  | 396,200 |  |  |  |  |  |
Stock options, vesting period |  |  | 10 years |  | 3 years | 1 year | 10 years |  |  |  |  |  |
Aggregate number of shares that may be awarded |  |  |  |  |  |  | 600,000 |  |  |  |  |  |
Performance period |  |  |  |  |  |  | 3 years |  |  |  |  |  |
Ultimate number of common shares that may be earned |  |  |  |  |  |  |  |  |  | 0 |  |  |
Common shares earned as percentage of initial target number shares awarded |  |  |  |  |  |  |  |  | 150.00% |  |  |  |
Compensation expense accrued as percentage of target levels |  |  |  |  |  |  |  |  |  |  | 100.00% | 50.00% | 118.00%
Compensation expense related to performance and restricted shares awarded |  |  | $ 0 | $ 0 |  |  | $ 892 | $ 547 |  |  |  |  |
Income tax benefits resulting of issuing common shares |  |  |  |  |  |  | 59 | 45 |  |  |  |  |
Total unrecognized compensation cost related to performance and restricted shares awarded |  |  |  |  |  |  | 1,235 |  |  |  |  |  |
Period of recognized compensation cost |  |  |  |  |  |  | 2 years |  |  |  |  |  |
Stock Based Compensation (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Options issued under both plans generally vested | 25.00% | 25.00% |  |  |  |  |  |  |  |  |  |  |
Unrecognized compensation cost related to stock options granted under company plan | 0 | 0 |  |  |  |  |  |  |  |  |  |  |
Outstanding share awards earned and issued at greater than the target number of shares | 150.00% |  |  |  |  |  |  |  |  |  |  |  |
Weighted average remaining term, options outstanding | 2 years 8 months 12 days |  |  |  |  |  |  |  |  |  |  |  |
Aggregate intrinsic value, options outstanding | $ 14 |  |  |  |  |  |  |  |  |  |  |  |

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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 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: 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=6793087&loc=d3e301413-122809 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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