Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals)	Jun. 30, 2021 $ / shares
Warrants at $6.50 Per Share [Member]
Warrants, exercise price (in dollars per share)	$ 6.50
Warrants at $5.00 Per Share [Member]
Warrants, exercise price (in dollars per share)	$ 5.00

Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant