XML 73 R58.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Stock-Based Compensation Plans Market Stock Units (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
MSU Expense | $ 500,000 | $ 300,000 | $ 200,000
Number of Market Stock Units |  |  |
Outstanding on December 31, 2014 | 88,600 |  |
Granted | 30,633 |  |
Exchanged for shares | (24,493) |  |
Cancelled | (6,970) |  |
Outstanding on December 31, 2015 | 87,770 | 88,600 |
Maximum Shares Potentially Issuable |  |  |
Outstanding on December 31, 2014 | 132,900 |  |
Granted | 45,949 |  |
Exchanged for shares | (36,739) |  |
Cancelled | (10,455) |  |
Outstanding on December 31, 2015 | 131,655 | 132,900 |
Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Potential Shares From MSU Vest | $ 0 |  |
Trading days | 30 days |  |
Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Potential Shares From MSU Vest | $ 1.50 |  |
Trading days | 60 days |  |

X
- Definition MSU Cancellations + References No definition available. + Details
Name: | laws_MSUCancellations
Namespace Prefix: | laws_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition MSU Expense + References No definition available. + Details
Name: | laws_MSUExpense
Namespace Prefix: | laws_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition MSU Grants + References No definition available. + Details
Name: | laws_MSUGrants
Namespace Prefix: | laws_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Outstanding Balance of Market Stock Units + References No definition available. + Details
Name: | laws_MSUOutstandingBalance
Namespace Prefix: | laws_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition MSUs Exchanged for Shares + References No definition available. + Details
Name: | laws_MSUsExchangedforShares
Namespace Prefix: | laws_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Shares No Longer Potentially Issuable due to the cancellation of Market Stock Units (MSUs) + References No definition available. + Details
Name: | laws_PotentialSharesFromMSUCancellations
Namespace Prefix: | laws_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Potential Shares From MSU Vest + References No definition available. + Details
Name: | laws_PotentialSharesFromMSUVest
Namespace Prefix: | laws_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Common Shares potentially issuable upon the vesting of the Market Stock Units (MSUs) Granted + References No definition available. + Details
Name: | laws_PotentialSharesfromMSUGrants
Namespace Prefix: | laws_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Shares Potentially Issuable upon Vesting of the Market Stock Units (MSUs) Outstanding + References No definition available. + Details
Name: | laws_PotentialSharesfromMSUsOutstanding
Namespace Prefix: | laws_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Market Stock Unit, Outstanding [Roll Forward] + References No definition available. + Details
Name: | laws_SharebasedCompensationArrangementbySharebasedPaymentAwardMarketStockUnitOutstandingRollForward
Namespace Prefix: | laws_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Market Stock Units, Potentially Issuable Shares [Roll Forward] + References No definition available. + Details
Name: | laws_SharebasedCompensationArrangementbySharebasedPaymentAwardMarketStockUnitsPotentiallyIssuableSharesRollForward
Namespace Prefix: | laws_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Shares Issued in Exchange for Vested Market Stock Units (MSUs) + References No definition available. + Details
Name: | laws_SharesIssuedOnVestingofMSUs
Namespace Prefix: | laws_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Trading days + References No definition available. + Details
Name: | laws_Tradingdays
Namespace Prefix: | laws_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |