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DISAGGREGATION OF REVENUE (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Revenue | $ 8,513,956 | $ 8,856,888 | $ 18,197,297 | $ 20,822,317
Belgium [Member] |  |  |  |
Revenue |  | 1,130 |  | 1,130
Croatia [Member] |  |  |  |
Revenue | (29) |  | 5,366 |
Denmark [Member] |  |  |  |
Revenue | 9,517 | 90,347 | 66,814 | 186,865
France [Member] |  |  |  |
Revenue | 48,084 | 106,031 | 90,145 | 178,382
Germany [Member] |  |  |  |
Revenue | 1,210,265 | 3,544,660 | 3,287,079 | 7,955,452
Greece [Member] |  |  |  |
Revenue | 5,749,006 | 331,496 | 11,205,579 | 1,091,495
Hungary [Member] |  |  |  |
Revenue | 117,176 | 437,945 | 167,088 | 756,919
Indonesia [Member] |  |  |  |
Revenue | 7,235 | (100) | 7,235 | 6,607
Ireland [Member] |  |  |  |
Revenue | 81,411 | 359,748 | 213,828 | 928,417
Italy [Member] |  |  |  |
Revenue | 38,949 | 108,220 | 112,386 | 264,832
Jordan [Member] |  |  |  |
Revenue | (110) | (504) | 20,322 | 33,133
Netherlands [Member] |  |  |  |
Revenue | 213,303 | 1,110,423 | 550,986 | 2,648,166
Poland [Member] |  |  |  |
Revenue | 90,199 | 202,067 | 228,469 | 566,797
Turkey [Member] |  |  |  |
Revenue | (133) |  | 24,562 |
UK [Member] |  |  |  |
Revenue | $ 949,443 | $ 2,565,425 | $ 2,217,438 | $ 6,204,122

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