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Balance Sheet Accounts (Narratives) (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2016 | Jun. 30, 2015
Balance Sheet Accounts [Line Items] |  |
Inventories | $ 52,755,000 | $ 58,014,000
Letters for credit outstanding | $ 1,000,000 |
Standard hardware warranty period | 12 months |
Standard software warranty period | 90 days |
Limited lifetime hardware warranty maximum period after end of sale of product | 5 years |
Maximum investment in one obligor or maker (percent) | 10.00% |
Accounts Receivable | Westcon Group Inc. | Customer Concentration Risk |  |
Balance Sheet Accounts [Line Items] |  |
Concentration risk | 17.00% |
Accounts Receivable | Tech Data Corporation | Customer Concentration Risk |  |
Balance Sheet Accounts [Line Items] |  |
Concentration risk | 11.00% |
Revolving Facility |  |
Balance Sheet Accounts [Line Items] |  |
Term of agreement |  | 5 years
Borrowing capacity |  | $ 50,000,000
Remaining borrowing capacity | $ 39,000,000 |
Term Loan |  |
Balance Sheet Accounts [Line Items] |  |
Term of agreement |  | 5 years
Borrowing capacity |  | $ 65,000,000
Maximum |  |
Balance Sheet Accounts [Line Items] |  |
Extended warranty period | 5 years |
Minimum |  |
Balance Sheet Accounts [Line Items] |  |
Extended warranty period | 1 year |
Cash equivalents | Maximum |  |
Balance Sheet Accounts [Line Items] |  |
Maturity period for investments | 3 months |
Short-term investments | Maximum |  |
Balance Sheet Accounts [Line Items] |  |
Maturity period for investments | 1 year |
Short-term investments | Minimum |  |
Balance Sheet Accounts [Line Items] |  |
Maturity period for investments | 3 months |

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