v2.4.0.8

Stock Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended			3 Months Ended				3 Months Ended		1 Months Ended		1 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014 Restricted Stock	Dec. 31, 2013 Restricted Stock	Mar. 31, 2014 Restricted Stock Service Based Options	Mar. 31, 2014 Restricted Stock Performance Contingent Restricted Shares	Mar. 31, 2014 Restricted Stock Minimum Service Based Options	Mar. 31, 2014 Restricted Stock Maximum Service Based Options	Aug. 31, 2012 2012 Equity Incentive Plan	Mar. 31, 2014 2012 Equity Incentive Plan	Aug. 31, 2012 Previously Approved Plans	Mar. 31, 2014 2012 Plan and Previously Approved Plans	Mar. 31, 2014 2012 Plan and Previously Approved Plans Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares initially authorized for issuance under equity incentive plan										300,000
Additional shares authorized for issuance under equity incentive plan										17,666
Shares ceased to be issuable												17,666
Outstanding options to purchase shares of common stock	119,000		279,000										119,000
Unvested restricted shares outstanding				379,657	318,660	103,494	276,163							379,657
Outstanding shares remained available for future grants											245,660
Non-cash stock-based compensation expense	$ 157,000	$ 105,000
Aggregate pre-tax intrinsic value	347,000
Vesting period								3 years	4 years
Vested				103,503
Intrinsic value of shares vested				384,500
Cancelled				34,793
Payment for withholding tax for cancellation of restricted shares	129,000	48,000		129,000
Unrecognized stock-based compensation expense related to the nonvested shares				1,074,000
Unrecognized stock-based compensation expense are expected to be recognized over a weighted average periods (years)				1 year 9 months 18 days
Restricted shares outstanding expected to vest				379,657
Aggregate intrinsic value				$ 1,428,000

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- Definition

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Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB

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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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Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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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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Intrinsic value of equity-based compensation awards not vested. Excludes stock and unit options.

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Intrinsic value of equity-based compensation awards vested. Excludes stock and unit options.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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

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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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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of options outstanding, including both vested and non-vested options.

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