Stock-Based Compensation - Additional Information (Detail)	Jun. 30, 2013
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Number of common stock shares reserved for issuance under the 2003 Equity Incentive Plan	334,070

- 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).

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