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Number of share-based compensation awards forfeited or expired in Period

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Share-based Compensation Arrangement by Share-based Payment Award, Grants in Period, Gross

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Percentage Vested And Exercisable Each Year

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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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-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

-Paragraph 2

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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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.

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- Definition

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

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-Name Accounting Standards Codification

-Topic 505

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-Publisher SEC

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Stock-based Compensation (Details)	1 Months Ended	3 Months Ended	82 Months Ended	123 Months Ended
Stock-based Compensation (Details)	May 31, 2014	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2015
Employee Stock Award Plan-2008 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of option awards vest and exercisable in installments		20.00%
Share-based Compensation Arrangement by Share-based Payment Award Available for Grant [Roll Forward]
Beginning balance		1,646,947	1,900,000
Additional shares authorized	1,500,000	0	1,500,000
Number of awards granted		362,854	2,359,363
Number of awards forfeited or expired		98,600	342,056
Ending balance		1,382,693	1,382,693	1,382,693
Employee Stock Award Plan-2008 [Member] \| Options Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period		10 years
Share-based Compensation Arrangement by Share-based Payment Award Available for Grant [Roll Forward]
Number of option awards exercised		23,724	491,287
Employee Stock Award Plan-2008 [Member] \| Unrestricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award Available for Grant [Roll Forward]
Number of awards granted		0	5,280
Employee Stock Award Plan-2008 [Member] \| Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years
Share-based Compensation Arrangement by Share-based Payment Award Available for Grant [Roll Forward]
Number of restricted stock awards vested		0	18,576
Director Plan - 2005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award Available for Grant [Roll Forward]
Beginning balance		87,194		300,000
Number of awards granted		0		218,809
Number of awards forfeited or expired		0		6,003
Ending balance		87,194	87,194	87,194
Director Plan - 2005 [Member] \| Options Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award Available for Grant [Roll Forward]
Number of option awards exercised		547		5,222
Number of restricted stock awards vested		0		11,442