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The annual limit for common stock purchases under the entity's Employee Stock Purchase Plan.

+ References

No definition available.

+ Details

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- Definition

The percentage of fair market value on the date of purchase that employees are allowed to purchase common stock as a part of the entity's Employee Stock Purchase Plan.

+ References

No definition available.

+ Details

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- Definition

The maximum payroll deduction rate that employees are allowed to set in order to accumulate amounts of common stock in the entity's Employee Stock Purchase Plan.

+ References

No definition available.

+ Details

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- Definition

The minimum payroll deduction rate that employees are allowed to set in order to accumulate amounts of common stock in the entity's Employee Stock Purchase Plan.

+ References

No definition available.

+ Details

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- Definition

The limit for the number of shares than can be purchased during a purchasing period in the entity's Employee Stock Purchase Plan.

+ References

No definition available.

+ Details

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- Definition

The number of shares newly issued during the reporting period under the plan to non-employee directors.

+ References

No definition available.

+ Details

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- Definition

Equity-based compensation cost during the period with respect to the award, which will be recognized in income (as well as the total recognized tax benefit) or capitalized as part of the cost of an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 50

-Section 50

-Paragraph 1

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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

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-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.

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- Definition

The number of shares newly issued during the reporting period under the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 65

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-Publisher FASB

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-Topic 718

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- Definition

Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

+ 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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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-Paragraph 2

-Subparagraph (a)

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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ 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)(iii)

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph A240

-Subparagraph b(1)(a, b)

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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-Name Accounting Standards Codification

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

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Common Stock (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 2005 Stock Plan	Sep. 30, 2011 2005 Stock Plan
Share-Based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Authorized					917,961	932,438
Terms of Award					The compensation committee will determine the number and type of stock-based awards to each participant, the exercise price of each award, the duration of the award (not to exceed ten years), vesting provisions and all other terms and conditions of such award in individual award agreements.
Number Of Outstanding Options					23,843
Weighted Average Exercise Price					$ 17.54
Share-based Compensation Arrangement by Share-based Payment Award, Additional Disclosures [Abstract]
Shares Issued During Period			5,750	5,550
Compensation Expense	$ 989	$ 235	$ 1,857	$ 1,139
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period to Directors			6,000
Employee Stock Purchase Plan [Abstract]
Employee Stock Purchase Plan Discount Rate	95.00%
Employee Stock Purchase Plan Payroll Deduction Rate Minimum	1.00%
Employee Stock Purchase Plan Payroll Deduction Rate Maximum	10.00%
Employee Stock Purchase Plan Annual Limit	$ 20
Employee Stock Purchase Plan Share Limit Per Period	200
ESPP Shares Issued			5,226	4,420