The amount of the cost recognized for matching contribution during the period for defined contribution plans.

No definition available.

Name:	lmia_DefinedContributionPlanCostRecognizedForMatchingContribution
Namespace Prefix:	lmia_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Number of company sponsored defined contribution plans.

No definition available.

Name:	lmia_DefinedContributionPlansNumberOfPlans
Namespace Prefix:	lmia_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Period in which profit sharing contributions by the entity to plan will become fully vested.

No definition available.

Name:	lmia_DefinedContributionPlanVestingPeriod
Namespace Prefix:	lmia_
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

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

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

DEFINED CONTRIBUTIONS PLANS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]
Number of company sponsored defined contribution plans	4
LMI Profit Sharing and Savings Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Maximum annual contribution per employee amount	$ 1
Defined contribution plan vesting period	6 years
Recognized cost for matching contributions	$ 882	$ 806	$ 798
Employer matching contribution percentage (in hundredths)	50.00%	50.00%	50.00%
Valent 401k and Simple IRA Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution threshold	3.00%
TASS Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan vesting period	5 years