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

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- Definition

The number of shares issued under the HEI Executive and Incentive Plan (EIP) as of the balance sheet date.

+ Details

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- Definition

The number of shares issued under the HEI Executive and Incentive Plan (EIP) as of the balance sheet date that is counted as 4 shares for every share issued.

+ Details

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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 obligated to be issued upon the obtaining specified criteria by members of the plan as of the balance sheet date.

+ Details

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- Definition

+ Details

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- Definition

Represents the number of shares counted against the shares issued during the period.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

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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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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

+ Details

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Share-based compensation (Details)		9 Months Ended
Share-based compensation (Details)	May 31, 2010 Equity and Incentive Plan (EIP)	Sep. 30, 2011 Equity and Incentive Plan (EIP) Restricted shares	Sep. 30, 2011 Equity and Incentive Plan (EIP) Restricted stock units	Sep. 30, 2011 Stock Option and Incentive Plan (SOIP)	Sep. 30, 2011 Long-term incentive plan (LTIP)
Share-based compensation
Number of shares counted for every share issued (in shares)		4	4
Number of shares that may be issued (in shares)			690,068
Shares issued (in shares)		72,036
Number of shares that may be issued (in shares)					368,323
Aggregate shares of issuance of common stock approved by shareholders (in shares)	4,000,000
Cumulative shares granted (in shares)		18,009
Cumulative shares granted (in shares)			172,517
Outstanding shares (in shares)				800,000