Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares shares in Thousands	Sep. 30, 2023	Dec. 31, 2022
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized (in shares)	300,000	300,000
Common Stock, Shares, Issued (in shares)	127,476	126,495
Common Stock, Shares, Outstanding (in shares)	127,445	126,302