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Segment Information (Details 2)
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Mar. 31, 2015
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Mar. 31, 2014
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|---|---|---|
| Verizon [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Entity-wide Major Customer, Percent Accounts Receivable |
30.40%wstl_EntityWideMajorCustomerPercentAccountsReceivable / us-gaap_MajorCustomersAxis = wstl_VerizonMember |
30.60%wstl_EntityWideMajorCustomerPercentAccountsReceivable / us-gaap_MajorCustomersAxis = wstl_VerizonMember |
| AT&T [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Entity-wide Major Customer, Percent Accounts Receivable |
12.70%wstl_EntityWideMajorCustomerPercentAccountsReceivable / us-gaap_MajorCustomersAxis = wstl_ATTMember |
16.70%wstl_EntityWideMajorCustomerPercentAccountsReceivable / us-gaap_MajorCustomersAxis = wstl_ATTMember |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Entity-wide Major Customer, Percent Accounts Receivable No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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