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v3.21.1

Consolidated Statements of Cash Flows (Parentheticals) - USD ($) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Cash flows related to discontinued operations | $ 195,496 | $ 4,307

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- Definition Increase (decrease) in cash associated with the entity's discontinued operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585 + Details
Name: | us-gaap_NetCashProvidedByUsedInDiscontinuedOperations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration