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Patents (Tables) | 9 Months Ended
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Mar. 31, 2018
Patents [Abstract] |
Schedule of patents |
|  | As of March 31, |  |  | As of June 30, |
|  | 2018 |  |  | 2017 |
Patents |  | $ | 380,000 |  |  | $ | 380,000 |
Less accumulated amortization |  |  | (128,000 | ) |  |  | (109,000 | )
Patents, net |  | $ | 252,000 |  |  | $ | 271,000
Schedule of amortization expense |
|  | Three Months Ended March 31, |  |  | Nine Months Ended March 31, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Amortization expense |  | $ | 6,000 |  |  | $ | 6,000 |  |  | $ | 19,000 |  |  | $ | 19,000 |

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