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Shareholders' Equity and Share-based Payments (Details) (USD $) | 3 Months Ended | 9 Months Ended |  |  | 0 Months Ended | 3 Months Ended |  | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |
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Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 item | Jun. 30, 2012 | Apr. 29, 2013 | Sep. 30, 2012 | Jan. 25, 2013 Option | Mar. 31, 2013 Option | Jun. 30, 2013 Option | Jun. 30, 2013 1998 Plan | Jun. 30, 2012 1998 Plan | Jun. 30, 2013 1998 Plan | Jun. 30, 2012 1998 Plan | Jun. 30, 2013 Restricted Plan | Jun. 30, 2012 Restricted Plan | Jun. 30, 2013 Restricted Plan | Jun. 30, 2012 Restricted Plan | Jun. 30, 2013 Restricted Plan Non-employee directors item | Jun. 30, 2013 2009 Plan | Jun. 30, 2012 2009 Plan | Jun. 30, 2013 2009 Plan | Jun. 30, 2012 2009 Plan | Jun. 30, 2013 2009 Plan Non-employee directors | Jun. 30, 2012 2009 Plan Non-employee directors | Jun. 30, 2013 2009 Plan Non-employee directors | Jun. 30, 2012 2009 Plan Non-employee directors | Jun. 30, 2013 2009 Plan Employees | Jun. 30, 2012 2009 Plan Employees | Jun. 30, 2013 2009 Plan Employees | Jun. 30, 2012 2009 Plan Employees | Jun. 30, 2013 2009 Plan Performance-based Award Employees
Shareholders' Equity and Share-based Payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized | 75,000,000 |  | 75,000,000 |  |  | 75,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, shares authorized | 10,000,000 |  | 10,000,000 |  |  | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation expense | $ 235,000 | $ 175,000 | $ 679,000 | $ 465,000 |  |  |  | $ 22,000 |  | $ 0 | $ 9,000 | $ 31,000 | $ 60,000 | $ 0 | $ 0 | $ 0 | $ 0 |  | $ 235,000 | $ 116,000 | $ 648,000 | $ 405,000 | $ 50,000 | $ 50,000 | $ 150,000 | $ 150,000 | $ 185,000 | $ 116,000 | $ 498,000 | $ 255,000 |
Unrecognized compensation cost, related to non-vested stock options |  |  |  |  |  |  |  |  | 59,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excess (shortfall) in income tax benefits related to share-based compensation arrangements | (4,000) | (1,000) | (17,000) | (2,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reduction in applicable option exercise price of each outstanding option (in dollars per share) |  |  |  |  |  |  | $ 1.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of share-based compensation plans maintained by the company |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock available for awards under the plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 369,683 |  | 369,683 |  |  |  |  |  |  |  |  |  |
Number of shares of common stock reserved for awards |  |  |  |  |  |  |  |  |  | 3,389,000 |  | 3,389,000 |  |  |  |  |  |  | 1,200,000 |  | 1,200,000 |  |  |  |  |  |  |  |  |  |
Fair market value of annual award of non-vested shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of quarterly installments of shares awards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum award (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 300,000
Stock repurchase program |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum number of shares of outstanding common stock approved to acquire under repurchase program |  |  |  |  | 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock purchased under the repurchase program | 0 | 39,400 | 175 | 180,501 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of common stock purchased under the repurchase program | $ 0 | $ 130,817 | $ 696 | $ 687,503 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average market price of common stock purchased under the repurchase program (in dollars per share) | $ 0.00 | $ 3.32 | $ 3.96 | $ 3.81 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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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 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 3: 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 Reference 4: 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 5: 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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + 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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