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

X

- 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