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Significant Accounting Policies (Details Narrative) - USD ($) | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2017 | Jun. 30, 2017 | Dec. 31, 2016 | Dec. 21, 2016 | Jun. 30, 2016
Retained earnings | $ (195,667,590) | $ (196,308,636) |  |  |
Inventory reserve - two years | 100.00% |  |  |  |
Inventory reserve slow moving - one year | 50.00% |  |  |  |
Inventory reserve slow moving - six months | 25.00% |  |  |  |
Cash and cash equivalents | $ 7,734,437 | $ 8,085,015 | $ 5,681,109 |  | $ 2,908,024
AvidBank Note [Member] |  |  |  |  |
Face amount of debt |  |  |  | $ 5,000,000 |
ISP Optics Corp [Member] | AvidBank Note [Member] |  |  |  |  |
Face amount of debt |  |  |  | 5,000,000 |
ISP Optics Corp [Member] | Sellers Note [Member] |  |  |  |  |
Face amount of debt |  |  |  | $ 6,000,000 |
Maturity Greater than 60 Days [Member] |  |  |  |  |
Allowance for doubtful accounts (percent) | 10.00% |  |  |  |
Maturity Greater than 90 Days [Member] |  |  |  |  |
Allowance for doubtful accounts (percent) | 100.00% |  |  |  |
Foreign Subsidiaries in China and Lativa-based[Member] |  |  |  |  |
Cash and cash equivalents held by foreign subsidiaries | 51.00% |  |  |  |
Percentage of registered capital | 150.00% |  |  |  |
Retained earnings | $ 1,400,000 |  |  |  |
Retained earnings needed for repatriation | $ 11,300,000 |  |  |  |
Foreign Subsidiaries in China and Lativa-based[Member] | Maturity Greater than 120 Days [Member] |  |  |  |  |
Allowance for doubtful accounts (percent) | 100.00% |  |  |  |
Upper Limit [Member] |  |  |  |  |
Value added tax rate | 21.00% |  |  |  |
Estimated Life (Years) | 15 years |  |  |  |
Lower Limit [Member] |  |  |  |  |
Estimated Life (Years) | 2 years |  |  |  |

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