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Commitments and Contingencies (Details Textual) (USD $)
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12 Months Ended | |||
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Mar. 31, 2015
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Mar. 31, 2014
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Mar. 31, 2013
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Apr. 02, 2013
acre
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| Loss Contingencies [Line Items] | ||||
| Area of Real Estate Property | 16us-gaap_AreaOfRealEstateProperty | |||
| Operating Leases, Rent Expense, Net | $ 3,100,000us-gaap_OperatingLeasesRentExpenseNet | $ 2,800,000us-gaap_OperatingLeasesRentExpenseNet | $ 2,300,000us-gaap_OperatingLeasesRentExpenseNet | |
| Operating Leases, Income Statement, Sublease Revenue | 100,000us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue | 100,000us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue | 100,000us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue | |
| Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax | 227,000us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax | (45,000)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax | (2,309,000)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax | |
| Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | 3,500,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh | 3,500,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh | ||
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | 1,584,000us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue | 2,641,000us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue | 2,333,000us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue | |
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements | 1,104,000us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements | |||
| Sale of Conference Plus Inc [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Loss Contingency Accrual, at Carrying Value |
400,000us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_LossContingenciesByNatureOfContingencyAxis = wstl_SaleOfConferencePlusIncMember |
700,000us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_LossContingenciesByNatureOfContingencyAxis = wstl_SaleOfConferencePlusIncMember |
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| Cns Asset Sale [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Loss Contingency, Loss in Period |
500,000us-gaap_LossContingencyLossInPeriod / us-gaap_LossContingenciesByNatureOfContingencyAxis = wstl_CnsAssetSaleMember |
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| Litigation Settlement, Expense |
900,000us-gaap_LitigationSettlementExpense / us-gaap_LossContingenciesByNatureOfContingencyAxis = wstl_CnsAssetSaleMember |
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| Loss Contingency, Estimate of Possible Loss |
400,000us-gaap_LossContingencyEstimateOfPossibleLoss / us-gaap_LossContingenciesByNatureOfContingencyAxis = wstl_CnsAssetSaleMember |
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| CA design lease [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Area of Real Estate Property |
2,500us-gaap_AreaOfRealEstateProperty / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_CAdesignleaseMember |
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| Regina Canada lease [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Area of Real Estate Property |
2,500us-gaap_AreaOfRealEstateProperty / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_ReginaCanadaLeaseMember |
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| CSI office lease [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Area of Real Estate Property |
19,525us-gaap_AreaOfRealEstateProperty / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_CSIofficeleaseMember |
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| Lease Expiration Date | Apr. 30, 2018 | |||
| Ohio design lease [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Area of Real Estate Property |
9,465us-gaap_AreaOfRealEstateProperty / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_OhiodesignleaseMember |
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| Lease Expiration Date | Sep. 30, 2019 | |||
| CSI dist lease [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Area of Real Estate Property |
16,932us-gaap_AreaOfRealEstateProperty / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_CSIdistleaseMember |
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| Lease Expiration Date | Aug. 31, 2018 | |||
| Aurora lease [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Area of Real Estate Property |
179,000us-gaap_AreaOfRealEstateProperty / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_AuroraLeaseMember |
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| Lease Expiration Date | Sep. 30, 2017 | |||
| Payments for Rent |
2,000,000us-gaap_PaymentsForRent / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_AuroraLeaseMember |
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| Percent rent increase every other year |
2.00%wstl_PercentRentIncreaseEveryOtherYear / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_AuroraLeaseMember |
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| Deferred Rent Credit, Noncurrent |
286,000us-gaap_DeferredRentCreditNoncurrent / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_AuroraLeaseMember |
417,000us-gaap_DeferredRentCreditNoncurrent / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_AuroraLeaseMember |
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| Deferred Rent Credit, Current |
155,000us-gaap_DeferredRentCreditCurrent / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_AuroraLeaseMember |
134,000us-gaap_DeferredRentCreditCurrent / us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis = wstl_AuroraLeaseMember |
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| Arkadin [Member] | ConferencePlus [Member] | ||||
| Loss Contingencies [Line Items] | ||||
| Escrow Deposit Released |
$ 1,100,000wstl_EscrowDepositReleased / dei_LegalEntityAxis = wstl_ArkadinMemberMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = wstl_ConferenceplusMember |
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| X | ||||||||||
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- Definition
Area of a real estate property. No definition available.
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| X | ||||||||||
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- Definition
For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
For a classified balance sheet, the cumulative difference as of the balance sheet date between the payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, within one year of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, more than one year after the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Date which lease or group of leases is set to expire, in CCYY-MM-DD format. No definition available.
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- Definition
Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. No definition available.
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- Definition
Amount of loss contingency liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of revenue recognized for the period under subleasing arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Cash payments to lessor's for use of assets under operating leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Escrow Deposit Released. No definition available.
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Percent rent increase every other year No definition available.
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