Share Based Payments - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended
Apr. 02, 2012	May 31, 2014	May 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from Stock Options Exercised		$ 200,000	$ 100,000
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options		200,000	0.00
Stock options granted, term		10 years
Stock options vesting period		3 years
Annual percentage over three years		33.33%
Stock options weighted average grant date fair value		$ 1.84	$ 0.77
Shares available for future grants		3,600,000
Restricted stock awards requisite service period		3 years
Grant date fair value of shares vested		3,600,000	400,000
Compensation expenses		948,000	663,000
Unrecognized compensation cost		2,800,000
Compensation cost of weighted average period		1 year 8 months 12 days
2012 Retention Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards requisite service period	2 years
Preferred stock contributed by company	400,000
Compensation expenses		$ 400,000	$ 200,000
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-Free Interest Rate:		1.20%	0.60%
Vesting dates of outstanding options		2014-07
Expiration dates of options		2015-03
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-Free Interest Rate:		1.30%	0.60%
Vesting dates of outstanding options		2017-07
Expiration dates of options		2024-05

Preferred Stock Contribution

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period Annual Percentage

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Award Vesting Date Month And Year

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- Definition

Share Based Compensation Arrangement by Share Based Payment Award Options Expiration Year Month

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Share based compensation share based payment award option grant period maximum.

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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

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-Publisher FASB

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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-Glossary Financing Activities

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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.

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- Definition

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

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