Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals)

v3.22.2.2

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals)	Jun. 30, 2021 $ / shares
Common Stock [Member] | January 2021 Offering [Member]
Stock issued, price per share (in dollars per share)	$ 2.60
Common Stock [Member] | February 2021 Offering [Member]
Stock issued, price per share (in dollars per share)	4.10
Common Stock [Member] | March 2021 Offering [Member]
Stock issued, price per share (in dollars per share)	9.00
Additional Paid-in Capital [Member] | January 2021 Offering [Member]
Stock issued, price per share (in dollars per share)	2.60
Additional Paid-in Capital [Member] | February 2021 Offering [Member]
Stock issued, price per share (in dollars per share)	4.10
Additional Paid-in Capital [Member] | March 2021 Offering [Member]
Stock issued, price per share (in dollars per share)	$ 9.00