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Summary of Significant Accounting Policies (Narratives) (Details) - USD ($) |  |  | 12 Months Ended
--- | --- | --- | ---
Jul. 01, 2018 | Jun. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Significant Accounting Policies [Line Items] |  |  |  |  |
Intangible asset and goodwill impairment |  |  | $ 0 | $ 0 |
Standard hardware warranty period (in months) |  |  | 12 months |  |
Standard software warranty period (in days) |  |  | 90 days |  |
Limited lifetime hardware warranty maximum period after end of sale of product (in years) |  |  | 5 years |  |
Advertising expenses |  |  | $ 500,000 | $ 400,000 | $ 300,000
Minimum percentage of tax benefit realized upon settlement |  | 50.00% | 50.00% |  |
Unrealized holding gain, net of tax |  |  | $ 497,000 |  |
ASU 2016-01 |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Unrealized holding gain, net of tax |  | $ 500,000 |  |  |
ASU 2016-01 | Subsequent Event |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Adjustment to accumulated deficit | $ 500,000 |  |  |  |
Maximum | Purchased Software |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property and equipment |  |  | 4 years |  |
Maximum | Computer Equipment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property and equipment |  |  | 4 years |  |
Maximum | Office Equipment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property and equipment |  |  | 7 years |  |
Maximum | Leasehold Improvements |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property and equipment |  |  | 10 years |  |
Minimum | Purchased Software |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property and equipment |  |  | 1 year |  |
Minimum | Computer Equipment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property and equipment |  |  | 1 year |  |
Minimum | Office Equipment |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property and equipment |  |  | 3 years |  |
Minimum | Leasehold Improvements |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property and equipment |  |  | 2 years |  |
Cash equivalents | Maximum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Maturity period for investments |  |  | 3 months |  |
Short-term Investments | Maximum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Maturity period for investments |  |  | 1 year |  |
Short-term Investments | Minimum |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Maturity period for investments |  |  | 3 months |  |

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