Summary of Business and Significant Accounting Policies - Concentration of Credit Risk (Details) $ in Millions	12 Months Ended
Jun. 30, 2020 USD ($) item customer	Jun. 30, 2019 USD ($) customer
Concentration of Credit Risk
Cash, cash equivalents and restricted cash	$ 46.6
Accounts Receivable
Contract receivables
Unbilled accounts receivable	$ 1.7	$ 1.4
Sales \| Customer Concentration Risk \| Cisco Systems, Inc
Concentration of Credit Risk
Concentration risk, percentage	18.00%	17.00%
Accounts Receivable \| Customer Concentration Risk
Concentration of Credit Risk
Number of customers that accounted for more than ten percent of accounts receivables \| customer	1	3
Number of partners that accounted for more than ten percent of accounts receivables \| item	1
Accounts Receivable \| Customer Concentration Risk \| Customer One
Concentration of Credit Risk
Concentration risk, percentage	18.00%	18.00%
Accounts Receivable \| Customer Concentration Risk \| Customer Two
Concentration of Credit Risk
Concentration risk, percentage		16.00%
Accounts Receivable \| Customer Concentration Risk \| Customer Three
Concentration of Credit Risk
Concentration risk, percentage		15.00%
Accounts Receivable \| Customer Concentration Risk \| Partner One
Concentration of Credit Risk
Concentration risk, percentage	23.00%

Cash, cash equivalents and restricted cash.

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Number of customers that accounted for more than ten percent of companys accounts receivable.

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Number of partners that accounted for more than ten percent of companys accounts receivable.

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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.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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