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Short term investments (Details) - USD ($) | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Platform Operator, Crypto-Asset [Line Items] |  |
Short term investments |  | $ 6,704,029
Fair Value, Inputs, Level 1 [Member] |  |
Platform Operator, Crypto-Asset [Line Items] |  |
Short term investments |  |
Fair Value, Inputs, Level 2 [Member] |  |
Platform Operator, Crypto-Asset [Line Items] |  |
Short term investments |  |
Fair Value, Inputs, Level 3 [Member] |  |
Platform Operator, Crypto-Asset [Line Items] |  |
Short term investments |  | $ 6,704,029

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section FF -Subsection Q2 -Publisher SEC + Details
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