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Concentrations (Details Narrative) (10-K) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019 | Jun. 30, 2019 | Jun. 30, 2018
Federal deposit insurance corporation |  |  |  |  | $ 250,000 |
Non-interest bearing bank deposit account | $ 106,000 |  | $ 106,000 |  | 102,000 |
Revenue | $ 5,051,000 | $ 1,751,000 | $ 10,585,000 | $ 6,297,000 | $ 9,317,000 | $ 4,118,000
Sales Revenue, Net [Member] | Four Major Customers [Member] |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  | 87.00% |
Revenue |  |  |  |  | $ 8,072,000 |
Sales Revenue, Net [Member] | Two Major Customers [Member] |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  |  | 77.00%
Revenue |  |  |  |  |  | $ 3,181,000
Purchase [Member] |  |  |  |  |  |
Concentration risk, percentage | 39.00% | 67.00% | 37.00% | 63.00% |  |
Total purchase | $ 2,581,000 | $ 1,735,000 | $ 4,802,000 | $ 5,117,000 |  |
Purchase [Member] | Three Suppliers [Member] |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  | 62.00% | 50.00%
Total purchase |  |  |  |  | $ 6,855,000 | $ 2,285,000

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