Number of common stock held in a trust that has been set up specifically to accumulate stock for the sole purpose of distribution to participating employees but not yet earned.

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-6

-Paragraph 14

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 40

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: 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.D.2)

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-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section D

-Subsection 2

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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).

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(c), d(2)

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- Definition

The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Gross number of share options (or share units) granted during the period.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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-Publisher FASB

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Number of share options (or share units) exercised during the current period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Name Regulation S-X (SX)

-Number 210

-Section 02

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The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

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-Paragraph 28

-Subparagraph (b)

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Note 9 - Employee Benefits (Detail) (USD $)	3 Months Ended		12 Months Ended
Note 9 - Employee Benefits (Detail) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	707,943
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	73,628
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	559,025				559,025
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value (in Dollars per share)			$ 169,570	$ 221,500
Stock or Unit Option Plan Expense (in Dollars)	$ 32,083	$ 23,717
Common Stock, Shares Held in Employee Trust, Shares	57,280
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	10 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	283,177
Shares Granted, Not Yet Vested [Member]
Common Stock, Shares Held in Employee Trust, Shares	23,891
Available for Grants [Member]
Common Stock, Shares Held in Employee Trust, Shares	33,389
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Available for Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	75,290