v3.20.2

Income taxes: (Details) - Summary of Operating Loss Carryforwards - USD ($) | Dec. 31, 2039 | Dec. 31, 2038 | Dec. 31, 2037 | Dec. 31, 2036 | Dec. 31, 2035 | Dec. 31, 2034 | Dec. 31, 2033 | Dec. 31, 2032 | Dec. 31, 2031 | Dec. 31, 2030 | Dec. 31, 2029 | Dec. 31, 2028 | Dec. 31, 2027 | Dec. 31, 2026 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
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Summary of Operating Loss Carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Opearting Loss Carryforward | $ 2,758,280 | $ 2,238,048 | $ 2,487,072 | $ 2,471,978 | $ 2,761,513 | $ 2,855,631 | $ 2,568,328 | $ 1,638,421 | $ 1,746,615 | $ 822,678 | $ 1,723,146 | $ 1,599,919 | $ 1,479,818 | $ 1,532,322 | $ 1,304,283 | $ 1,250,783 | $ 2,775,900 | $ 2,503,951 | $ 3,681,189 | $ 4,425,866 | $ 88,022

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- References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates. + References No definition available. + Details
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