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Operating Segments - Summary of Operating Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Mar. 31, 2018 | Mar. 31, 2017
Revenues | $ 17,043,820 | $ 17,949,320 | $ 44,309,031 | $ 50,884,575
Net income (loss) after taxes and before non-controlling interest | 4,859,314 | 2,138,217 | 6,340,051 | 1,144,590
Intercompany Revenue [Member] |  |  |  |
Revenues | 476,065 | 405,258 | 1,863,136 | 2,558,992
North America [Member] |  |  |  |
Net income (loss) after taxes and before non-controlling interest | (11,777) | (302,353) | (242,229) | (569,170)
Europe [Member] |  |  |  |
Net income (loss) after taxes and before non-controlling interest | 265,831 | (199,215) | 545,876 | (1,492,986)
Europe [Member] | Intercompany Revenue [Member] |  |  |  |
Revenues | 137,864 | 112,419 | 379,567 | 343,599
Asia - Pacific [Member] |  |  |  |
Net income (loss) after taxes and before non-controlling interest | 5,134,308 | 3,786,853 | 8,862,093 | 6,533,246
Asia - Pacific [Member] | Intercompany Revenue [Member] |  |  |  |
Revenues | 338,201 | 292,839 | 1,483,569 | 2,215,393
Corporate Headquarters [Member] |  |  |  |
Net income (loss) after taxes and before non-controlling interest | (529,048) | (1,147,068) | (2,825,689) | (3,326,500)
Unaffiliated Customers [Member] |  |  |  |
Revenues | 15,654,078 | 15,938,527 | 39,363,177 | 43,499,397
Unaffiliated Customers [Member] | North America [Member] |  |  |  |
Revenues | 998,403 | 1,111,897 | 3,134,113 | 4,467,325
Unaffiliated Customers [Member] | Europe [Member] |  |  |  |
Revenues | 1,764,651 | 1,579,486 | 4,873,688 | 3,133,101
Unaffiliated Customers [Member] | Asia - Pacific [Member] |  |  |  |
Revenues | 12,891,024 | 13,247,144 | 31,355,376 | 35,898,971
Affiliated Customers [Member] |  |  |  |
Revenues | 1,389,742 | 2,010,793 | 4,945,854 | 7,385,178
Affiliated Customers [Member] | Europe [Member] |  |  |  |
Revenues | 464,976 | 229,081 | 1,508,867 | 2,031,339
Affiliated Customers [Member] | Asia - Pacific [Member] |  |  |  |
Revenues | $ 924,766 | $ 1,781,712 | $ 3,436,987 | $ 5,353,839

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