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Loan Agreement Quarterly Financial Covenants (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Required Minimum Value [Member]
Schedule of minimum EBITDA level achievable on quarterly basis
MinTangibleNetWorth	$ 45,000laws_MinTangibleNetWorth / laws_DebtCovenantValueAxis = laws_RequiredMinimumValueMember
Actual Value [Member]
Schedule of minimum EBITDA level achievable on quarterly basis
MinTangibleNetWorth	$ 54,100laws_MinTangibleNetWorth / laws_DebtCovenantValueAxis = laws_ActualValueMember
Maximum | Required Minimum Value [Member]
Line of Credit Facility [Line Items]
EBITDA to Fixed Charges	1.10laws_EBITDAtoFixedCharges / laws_DebtCovenantValueAxis = laws_RequiredMinimumValueMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Maximum | Actual Value [Member]
Line of Credit Facility [Line Items]
EBITDA to Fixed Charges	2.62laws_EBITDAtoFixedCharges / laws_DebtCovenantValueAxis = laws_ActualValueMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Minimum | Required Minimum Value [Member]
Line of Credit Facility [Line Items]
EBITDA to Fixed Charges	1.00laws_EBITDAtoFixedCharges / laws_DebtCovenantValueAxis = laws_RequiredMinimumValueMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Minimum | Actual Value [Member]
Line of Credit Facility [Line Items]
EBITDA to Fixed Charges	1.00laws_EBITDAtoFixedCharges / laws_DebtCovenantValueAxis = laws_ActualValueMember / us-gaap_RangeAxis = us-gaap_MinimumMember

X

- Definition

EBITDA to Fixed Charges as defined by the loan agreement

+ References

No definition available.

+ Details

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X

- Definition

Minimum Tangible Net Worth

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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- Details

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- Details

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- Details

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X

- Details

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- Details

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