XML 57 R49.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Subsequent Events (Details) (USD $) In Millions, unless otherwise specified | May 31, 2014 | Feb. 28, 2013
--- | --- | ---
Subsequent Event [Line Items] |  |
Contract amount |  | $ 39
Potential account receivable for obligations not yet completed | 2.6 |
Accounts receivable outstanding | 2.5 |
Possible loss amount | 4.4 |
Performance Bond Obligation [Member] |  |
Subsequent Event [Line Items] |  |
Possible loss amount | 1.9 |
Collectibility Of Receivables [Member] |  |
Subsequent Event [Line Items] |  |
Possible loss amount | $ 2.5 |

X
- Definition Contract Amount + References No definition available. + Details
Name: | lnn_ContractAmount
Namespace Prefix: | lnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Potential Account Receivable For Obligations Not Yet Completed + References No definition available. + Details
Name: | lnn_PotentialAccountReceivableForObligationsNotYetCompleted
Namespace Prefix: | lnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The estimated maximum amount of possible loss from the contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
Name: | us-gaap_LossContingencyRangeOfPossibleLossMaximum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount to be collected within one year of the balance sheet date (or one operating cycle, if longer) from customers in accordance with the contractual provisions of long-term contracts or programs including amounts billed and unbilled as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph c -Article 5 + Details
Name: | us-gaap_ReceivablesLongTermContractsOrPrograms
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration