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Segment Information and Geographic Areas - Summary of Operating Information (Details) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2018 | Jun. 30, 2017
Revenues | $ 60,930,258 | $ 65,366,268
Net income (loss) after taxes and before non-controlling interest | 7,149,978 | (1,736,436)
Depreciation and amortization | 5,573,474 | 6,562,334
Interest expense | 422,327 | 310,044
Income tax expense benefit | 873,027 | 931,951
Intercompany Revenue [Member] |  |
Revenues | 3,274,503 | 3,108,571
North America [Member] |  |
Net income (loss) after taxes and before non-controlling interest | (237,708) | (454,297)
Depreciation and amortization | 43,049 | 47,583
Interest expense | 113 | 138
Europe [Member] |  |
Net income (loss) after taxes and before non-controlling interest | 1,059,823 | (1,956,137)
Depreciation and amortization | 249,256 | 206,407
Interest expense | 15,628 | 17,462
Income tax expense benefit | (8,435) |
Europe [Member] | Intercompany Revenue [Member] |  |
Revenues | 545,330 | 509,328
Asia - Pacific [Member] |  |
Net income (loss) after taxes and before non-controlling interest | 8,226,973 | 5,758,076
Depreciation and amortization | 5,281,169 | 6,308,344
Interest expense | 396,184 | 283,868
Income tax expense benefit | 881,462 | 931,951
Asia - Pacific [Member] | Intercompany Revenue [Member] |  |
Revenues | 2,729,173 | 2,599,243
Corporate Headquarters [Member] |  |
Net income (loss) after taxes and before non-controlling interest | (1,899,110) | (5,084,078)
Interest expense | 10,402 | 8,576
Unaffiliated Customers [Member] |  |
Revenues | 54,592,545 | 57,175,178
Unaffiliated Customers [Member] | North America [Member] |  |
Revenues | 4,036,626 | 5,624,434
Unaffiliated Customers [Member] | Europe [Member] |  |
Revenues | 6,767,845 | 5,550,536
Unaffiliated Customers [Member] | Asia - Pacific [Member] |  |
Revenues | 43,788,074 | 46,000,208
Affiliated Customers [Member] |  |
Revenues | 6,337,713 | 8,191,090
Affiliated Customers [Member] | Europe [Member] |  |
Revenues | 2,111,315 | 1,299,784
Affiliated Customers [Member] | Asia - Pacific [Member] |  |
Revenues | $ 4,226,398 | $ 6,891,306

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