Employee Benefit Plan (Details) (USD $)	12 Months Ended
Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution (in hundredths)	5.00%
Employer matching contribution, per employee per year	$ 3,000
Percentage of contributions by employees that vest immediately (in hundredths)	100.00%
Percentage of contributions by employer that vest immediately (in hundredths)	50.00%
Period of reinstatement of employer contribution if employee returns to service	5 years
Employer matching contribution	$ 100,000
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Annual contribution per employee (in hundredths)	1.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Annual contribution per employee (in hundredths)	50.00%

Percentage of contributions by employees that vest immediately.

No definition available.

Name:	look_PercentageOfContributionsByEmployeesThatVestImmediately
Namespace Prefix:	look_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the period of reinstatement of employer contribution if employee returns to service.

No definition available.

Name:	look_PeriodOfReinstatementOfEmployerContribution
Namespace Prefix:	look_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Maximum amount per employee, by the terms of the plan, that the employer may contribute to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration