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Condensed Consolidated Balance Sheets (Current Period Unaudited)-parentheticals (Parentheticals) - $ / shares
Sep. 30, 2022
Dec. 31, 2021
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred Stock, Shares Issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 600,000,000 600,000,000
Common Stock, Shares, Issued (in shares) 113,162,827 96,774,185
Common stock, shares outstanding (in shares) 113,162,827 96,774,185