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Concentration of Credit Risk and Significant Customers (Tables) | 9 Months Ended
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Mar. 31, 2018
Risks and Uncertainties [Abstract] |
Schedules of Concentration of Risk, by Risk Factor | Summarized below are individual customers whose revenue or accounts receivable balances were more than 10% of the respective total consolidated amounts:
| Three Months Ended March 31, |  | Nine Months Ended March 31,
Percentage of revenue | 2018 |  | 2017 |  | 2018 |  | 2017
Customer A | 25.9 | % |  | 27.3 | % |  | 28.1 | % |  | 26.2 | %
Customer B | 37.0 | % |  | 36.6 | % |  | 34.8 | % |  | 36.3 | %
Customer C | * |  |  | 10.5 | % |  | * |  |  | 11.7 | %
* Less than 10%
| March 31, 2018 |  | June 30, 2017
Percentage of accounts receivable |
Customer A | 19.9 | % |  | 33.2 | %
Customer B | 29.3 | % |  | 13.2 | %
Customer C | 11.9 | % |  | 16.4 | %

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- Definition Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6442-108592 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6327-108592 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592 + Details
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