Segment Information (Details 2) |
Mar. 31, 2018 |
Mar. 31, 2017 |
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| Verizon [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Entity-wide Major Customer, Percent Accounts Receivable | 36.20% | 19.00% |
| AT&T [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Entity-wide Major Customer, Percent Accounts Receivable | 14.40% | 22.40% |
| T-Mobile [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Entity-wide Major Customer, Percent Accounts Receivable | 8.40% | 13.30% |
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- 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. No definition available.
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- Definition Entity-wide Major Customer, Percent Accounts Receivable No definition available.
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