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Discontinued operations - CW-Belize - Additional Information (Details) - USD ($) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Aug. 31, 2019 | Feb. 14, 2019 | Mar. 31, 2020 | Mar. 31, 2019
Gain on sale of discontinued operations |  |  | $ 0 | $ 3,621,170
CW Belize [Member] |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration |  | $ 7,000,000 |  |
Proceeds from Divestiture of Businesses | $ 265,000 | 6,735,000 |  |
Supplemental Deferred Purchase Price |  | $ 265,000 |  |
Gain on sale of discontinued operations |  |  |  | $ 3,621,170

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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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