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Major Customers as a Percentage of Net Accounts Receivable Balances (Details) | Dec. 31, 2015 | Dec. 31, 2014
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Ingram Micro Inc. |  |
Percent of net accounts receivable balances | 35.00% | 42.00%
Threshold percentage for disclosure | 10.00% | 10.00%
BlueStar, Inc. |  |
Percent of net accounts receivable balances | 22.00% | 25.00%
Threshold percentage for disclosure | 10.00% | 10.00%
Scansource, Inc. |  |
Percent of net accounts receivable balances | 17.00% | 14.00%
Threshold percentage for disclosure | 10.00% | 10.00%

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