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Acquisition of ISP Optics Corporation (Details 1) - USD ($) | Dec. 31, 2017 | Jun. 30, 2017 | Dec. 21, 2016
--- | --- | --- | ---
Goodwill | $ 5,854,905 | $ 5,854,905 |
ISP Optics Corp [Member] |  |  |
Cash |  |  | $ 1,243,216
Accounts receivable |  |  | 1,108,980
Inventory |  |  | 1,134,628
Other current assets |  |  | 153,450
Property and equipment |  |  | 4,666,634
Security deposits and other assets |  |  | 45,359
Intangible assets, net |  |  | 11,069,000
Total identifiable assets acquired |  |  | 19,421,267
Accounts payable |  |  | (554,050)
Accrued expenses and other payables |  |  | (133,974)
Other payables |  |  | (146,324)
Deferred tax liability |  |  | (5,386,880)
Total liabilities assumed |  |  | (6,221,228)
Net identifiable assets acquired |  |  | 13,200,039
Goodwill |  |  | 5,854,905
Net assets acquired |  |  | $ 19,054,944

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