Significant Accounting Policies - Concentration of Credit Risk (Details)	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Concentration Risk [Line Items]
Concentration risk, number of customers	no	one
Customer One \| Accounts and installments receivable \| Customers concentration risk
Concentration of Credit Risk
Percentage of total receivables	10.00%
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Customer One \| Accounts and installments receivable \| Customers concentration risk
Concentration of Credit Risk
Percentage of total receivables		12.00%

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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