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Stockholders' Equity RS Award Activity (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 12,500 | 107,500 | 320,000 |
Vested | (111,080) | (192,973) | (165,628) |
Unvested shares forfeited | 0 | (32,901) | (130,258) |
Share outstanding | 159,246 | 257,826 | 376,200 | 352,086
Two Thousand Six [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 384,850 |  |  |
Weighted Average Fair Value at Date of Grant | $ 24.78 |  |  |
Vested | 258,347 |  |  |
Unvested shares forfeited | 126,503 |  |  |
Recognized compensation expense | $ 6,402 |  |  |
Two Thousand Six [Member] | Two Thousand Six 1 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 25,000 |  |  |
Weighted Average Fair Value at Date of Grant | $ 17.36 |  |  |
Vested | 25,000 |  |  |
Unvested shares forfeited | 0 |  |  |
Recognized compensation expense | 434 |  |  |
Two Thousand Seven [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 20,000 |  |  |
Weighted Average Fair Value at Date of Grant | $ 25.08 |  |  |
Vested | 20,000 |  |  |
Unvested shares forfeited | 0 |  |  |
Recognized compensation expense | 502 |  |  |
Two Thousand Seven [Member] | Two Thousand Seven 1 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 4,000 |  |  |
Weighted Average Fair Value at Date of Grant | $ 26.48 |  |  |
Vested | 4,000 |  |  |
Unvested shares forfeited | 0 |  |  |
Recognized compensation expense | 106 |  |  |
Two Thousand Eight [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 101,650 |  |  |
Weighted Average Fair Value at Date of Grant | $ 19.17 |  |  |
Vested | 85,750 |  |  |
Unvested shares forfeited | 15,900 |  |  |
Recognized compensation expense | 1,779 |  |  |
Two Thousand Nine [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 185,100 |  |  |
Weighted Average Fair Value at Date of Grant | $ 8.71 |  |  |
Vested | 146,400 |  |  |
Unvested shares forfeited | 38,700 |  |  |
Recognized compensation expense | 1,344 |  |  |
Two Thousand Ten [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 225,486 |  |  |
Weighted Average Fair Value at Date of Grant | $ 3.64 |  |  |
Vested | 147,456 |  |  |
Unvested shares forfeited | 78,030 |  |  |
Recognized compensation expense | 495 |  |  |
Two Thousand Eleven [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 320,000 |  |  |
Weighted Average Fair Value at Date of Grant | $ 3.39 |  |  |
Vested | 171,715 |  |  |
Unvested shares forfeited | 73,205 |  |  |
Recognized compensation expense | 669 |  |  |
Two Thousand Twelve [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 107,500 |  |  |
Weighted Average Fair Value at Date of Grant | $ 2.07 |  |  |
Vested | 35,834 |  |  |
Unvested shares forfeited | 0 |  |  |
Recognized compensation expense | 124 |  |  |
Two Thousand Thirteen [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares Granted | 12,500 |  |  |
Weighted Average Fair Value at Date of Grant | $ 5 |  |  |
Vested | 0 |  |  |
Unvested shares forfeited | 0 |  |  |
Recognized compensation expense | $ 19 |  |  |

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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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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + 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 (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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 (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + 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 (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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