Stock Options (Narrative) (Detail) (USD $)	3 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Exercise price of stock options received in entity shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Description of noncash transaction	The option exercise price for 27,000 shares was paid for with 13,807 shares of the Company’s common stock, which were retired upon receipt.
Number of shares exercised	27,000	0
Noncash collection of stock option exercise price, number of shares received and retired	13,807
2002 Employee Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance under the plan	1,836,000
Percentage applied to market price to set a grant price for a shareholder owning 10% or more of the company's outstanding common stock	110.00%
Term of stock option awards	10 years
Annual rate at which share-based compensation awards vest	20.00%
Number of stock options granted from plan inception	1,471,480
Number of stock options available for grant	364,520
Unearned stock-based compensation cost related to non-vested awards	0
Fair value of stock options that vested during the period	0
Number of shares authorized for issuance under the plan	1,836,000
Term of stock option awards	10 years
Annual rate at which share-based compensation awards vest	20.00%
Stock Option Plan 2000 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance under the plan	270,000
Term of stock option awards	5 years
Annual rate at which share-based compensation awards vest	20.00%
Fair value of stock options that vested during the period	0
Number of shares authorized for issuance under the plan	270,000
Term of stock option awards	5 years
Annual rate at which share-based compensation awards vest	20.00%
Option price stated as a percentage of the fair market value of the stock price on the date of grant	100.00%

The number of shares of stock the entity received as consideration for the exercise of stock options.

No definition available.

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- Definition

The sum of the market price plus the markup applied to market price on the date of grant to set the exercise price of a stock option awarded to a grantee owning 10% or more of the entity's outstanding common stock on the date of grant.

+ References

No definition available.

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- Definition

The contractual term of a share-based compensation award.

+ References

No definition available.

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- Definition

Number of stock options granted to participants.

+ References

No definition available.

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- Definition

The annual rate at which a grantee of a share-based compensation award (stock or options) gains the rights of ownership to the shares/can exercise options that were issued or are issuable, pursuant to the terms of the award.

+ References

No definition available.

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- Definition

Aggregate unrecognized cost of option awards made to employees under a stock option plan or plans, that have yet to vest.

+ References

No definition available.

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- Definition

A textual description of other significant noncash (or part noncash) investing and financing activities required to be supplementally disclosed to enable users of the financial information to fully understand the period cash flows of the Entity in relation to the statements of financial position, income statement, and statement of changes in shareholders' equity. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of a transaction not resulting in cash receipts or cash payments in the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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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.

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-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

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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-Publisher FASB

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-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

+ References

No definition available.

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- Definition

Purchase price of common stock expressed as a percentage of its fair market value.

+ References

No definition available.

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- Definition

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28,29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

-Paragraph 29, 30

-Article 5

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-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

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