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

+ References

No definition available.

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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

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

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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)

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-Paragraph A240

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

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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

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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

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- Definition

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

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Common Stock (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 2005 Stock Plan	Sep. 30, 2012 2005 Stock Plan
Share-Based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Authorized					860,237	865,917
Number Of Outstanding Options					16,854
Weighted Average Exercise Price					$ 17.55
Share-based Compensation Arrangement by Share-based Payment Award, Additional Disclosures [Abstract]
Shares Issued During Period			3,100	5,750
Compensation Expense	$ 1,465	$ 427	$ 2,192	$ 868
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period to Directors			6,000	0
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			2,750	3,520