Percentage of restricted stock units vesting annually beginning on second anniversary of grant date.

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- Definition

Share based compensation arrangement by share based payment award shares unissued.

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No definition available.

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- Definition

Shares of restricted stock cliff to be vested.

+ References

No definition available.

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- Definition

Shares of restricted stock units to be vested.

+ References

No definition available.

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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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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-SubTopic 10

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-Paragraph 2

-Subparagraph (a)(1)

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- 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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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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-Subparagraph (c)(1)(iv)(4)

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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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

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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Stock-Based Employee Compensation - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost recognized		$ 57,000	$ 49,000	$ 175,000	$ 142,000
Unrecognized compensation cost		536,000		536,000		365,000
Fair value of awards, granted	$ 7.55
Number of shares of restricted stock vest	28,643
Shares of the restricted stock vest over period	5 years
Percentage of restricted stock units vesting annually beginning on second anniversary of grant date	25.00%
Number of shares of RSUs cliff vest				15,548
Number of Shares granted		0		0
Stock options exercised		0		0
Stock options forfeited		0		0
Stock options expired		0		0
Tranche 3 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted stock vest	1,125
Shares of the restricted stock vest over period	5 years
Percentage of restricted stock units vesting annually beginning on second anniversary of grant date	25.00%
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of the restricted stock vest over period	3 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortized compensation expense related to the restricted stock units		$ 50,000	$ 29,000	$ 149,000	$ 81,000
Restricted Stock Units (RSUs) [Member] \| Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted restricted stock units	45,316
2008 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved shares of common stock for issuance		1,000,000		1,000,000
2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved shares of common stock for issuance		750,000		750,000
Unissued common stock reserved under equity incentive plan		613,183		613,183