Quarterly report pursuant to Section 13 or 15(d)

Acquistions (Details)

v2.4.1.9
Acquistions (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Mar. 31, 2014
Sep. 30, 2014
Mar. 02, 2014
Business Acquisition [Line Items]        
Goodwill $ 0us-gaap_Goodwill $ 31,102us-gaap_Goodwill [1]    
IBW [Member]        
Business Acquisition [Line Items]        
Goodwill 0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember 		0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember 		20,547us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember 		 
CSI [Member]        
Business Acquisition [Line Items]        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill       16,173us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ dei_LegalEntityAxis
= wstl_CSIMember
CSI [Member] | IBW [Member]        
Business Acquisition [Line Items]        
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAcquired       6,513wstl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAcquired
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Business Acquisition, Purchase Price Allocation, Current Assets Trade Accounts Receivable       2,900wstl_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsTradeAccountsReceivable
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory       7,383us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
BusinessAcquisitionPurchasePriceAllocationCurrentAssetsOtherassets       135wstl_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsOtherassets
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment       771us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill       16,173us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable       (2,912)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other       (1,175)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent       (6,293)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Goodwill       20,547us-gaap_Goodwill
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest       44,042us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementBusinessSegmentsAxis
= wstl_IBWMember
CSI [Member] | Scenario, Previously Reported [Member]        
Business Acquisition [Line Items]        
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAcquired       6,513wstl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAcquired
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Business Acquisition, Purchase Price Allocation, Current Assets Trade Accounts Receivable       2,920wstl_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsTradeAccountsReceivable
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory       7,625us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
BusinessAcquisitionPurchasePriceAllocationCurrentAssetsOtherassets       158wstl_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsOtherassets
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment       816us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill       16,230us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable       (2,875)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other       (1,175)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent       (6,616)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Goodwill       20,142us-gaap_Goodwill
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest       43,738us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
CSI [Member] | Restatement Adjustment [Member]        
Business Acquisition [Line Items]        
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAcquired       0wstl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAcquired
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember
Business Acquisition, Purchase Price Allocation, Current Assets Trade Accounts Receivable       (20)wstl_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsTradeAccountsReceivable
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[2]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory       (242)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[2]
BusinessAcquisitionPurchasePriceAllocationCurrentAssetsOtherassets       (23)wstl_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsOtherassets
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[2]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment       (45)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[2]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill       (57)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[3]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable       (37)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[2]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other       0us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent       323us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[3]
Goodwill       405us-gaap_Goodwill
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest       $ 304us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest
/ dei_LegalEntityAxis
= wstl_CSIMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[4]
[1] Certain amounts have been adjusted to reflect measurement period adjustments related to the CSI acquisition.
[2] Other measurement period adjustments mostly related to inventory adjustments
[3] Intangible asset fair value adjustment for trade name and related tax effect
[4] Payment for final working capital adjustment