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Business Risk and Credit Risk Concentration Involving Cash (Details) - Customer concentration risk | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2017 | Mar. 31, 2016 | Jun. 30, 2015
Next Generation Chemical Detector Partner | Revenue |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage | 19.00% | 11.00% | 46.00% | 59.00% |
Department of Homeland Security Science and Technology Directorate Partner | Revenue |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage | 79.00% | 89.00% | 53.00% | 20.00% |
Department of Homeland Security Science and Technology Directorate Partner | Accounts receivable |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 87.00% |  | 100.00%
A Japanese Aerospace Company | Revenue |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 0.00% | 21.00% |

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