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v3.19.2

Other income (Tables) | 6 Months Ended
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Jun. 30, 2019
Component of Operating Income [Abstract] |
Schedule of other income | Other income consisted of the following for the three and six months ended June 30, 2019 and 2018:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Management fees | $ | 2,397 |  |  | $ | 3,386 |  |  | $ | 5,807 |  |  | $ | 6,500 |
Interest and other income | 14,559 |  |  | 9,060 |  |  | 32,542 |  |  | 15,478 |
| $ | 16,956 |  |  | $ | 12,446 |  |  | $ | 38,349 |  |  | $ | 21,978 |

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- Definition Tabular disclosure of interest income and income classified as other. + References No definition available. + Details
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- References No definition available. + Details
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