Allocated share based compensation expense net of tax per diluted share.

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Forfeiture provisions lapse period for non-employee directors.

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Share based compensation arrangement by share based payment award options remaining vesting period after year one.

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- Definition

Share based compensation arrangement by share based payment award options valued by Black-Scholes model.

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- Definition

Transfer restrictions lapse period for non-employee directors.

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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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- Definition

The amount of expense, net of income tax, 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.

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No definition available.

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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

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the 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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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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Date the equity-based award expires, in CCYY-MM-DD format.

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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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- 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

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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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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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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Stock-Based Compensation - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended		0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2015	Jun. 16, 2014	Aug. 18, 2014	Jul. 07, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense, net of tax	$ 158	$ 104	$ 535	$ 320
Stock-based compensation expense, net of tax, per diluted share	$ 0.02	$ 0.01	$ 0.05	$ 0.03
Shares of common stock granted	245,376		245,376
Options vesting period, beginning one year after the date of the grant			3 years
Number of Shares, Granted			440,000		158,000
Options valued by Black Scholes pricing model					19,000
Exercise of stock options			662	677
Aggregate intrinsic value of options exercised			339
Unrecognized compensation cost related to stock options granted-but-not-yet-vested that are expected to become exercisable	1,068		1,068
Weighted-average period cost is to be recognized			1 year
Forfeiture provisions lapse period for non-employee directors			1 year
Transfer restrictions lapse period for non-employee directors			6 months
Unrecognized compensation cost related to non-vested restricted stock awards	231		231
Scenario, Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted						440,000
Options valued by Black Scholes pricing model						55,000
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option compensation expense			681		362
Taxes related to stock option compensation expense			252		138
Weighted-average period cost is to be recognized			2 years
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option compensation expense			168		155
Taxes related to stock option compensation expense			$ 62		59
Black Scholes Based Option Pricing Model \| 2015 $4.61 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 4.61
Black Scholes Based Option Pricing Model \| 2015 $4.61 Value Per Option \| Scenario, Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted						4.61
Black Scholes Based Option Pricing Model \| 2015 $3.85 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 3.85
Black Scholes Based Option Pricing Model \| 2015 $3.85 Value Per Option \| Scenario, Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted						3.85
Black Scholes Based Option Pricing Model \| 2015 $3.72 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 3.72
Black Scholes Based Option Pricing Model \| 2015 $3.72 Value Per Option \| Scenario, Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted						3.72
Black Scholes Based Option Pricing Model \| 2014 $3.03 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 3.03		3.03
Black Scholes Based Option Pricing Model \| 2014 $3.01 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 3.01		3.01
Monte Carlo Simulation
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted					139,000
Monte Carlo Simulation \| Scenario, Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted						385,000
Monte Carlo Simulation \| 2015 $3.05 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 3.05
Monte Carlo Simulation \| 2015 $3.05 Value Per Option \| Scenario, Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted						3.05
Monte Carlo Simulation \| 2015 $2.49 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 2.49
Monte Carlo Simulation \| 2015 $2.49 Value Per Option \| Scenario, Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted						2.49
Monte Carlo Simulation \| 2014 $1.90 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 1.90		1.90
Monte Carlo Simulation \| 2014 $1.71 Value Per Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average value per option granted			$ 1.71		1.71
Chief Financial Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted							200,000
Weighted-average value per option granted							$ 12.78
Vice President
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted								200,000
Weighted-average value per option granted								$ 10.40
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period			10 years
2012 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock granted	750,000		750,000
Shares of common stock granted, expiration date			Oct. 31, 2022
2012 Plan \| Chief Financial Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted									150,000
2006 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock granted	500,000		500,000
Shares of common stock granted, expiration date			Jul. 31, 2016
2006 Plan \| Chief Financial Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted									50,000
2004 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock granted, expiration date			Sep. 30, 2014