Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Preferred Stock, Shares Authorized (in shares)	15,000,000	15,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	45,000,000	45,000,000
Common stock, shares issued (in shares)	9,616,084	9,454,233
Common stock, shares outstanding (in shares)	9,613,604	9,451,753
Treasury stock, sharesTreasury stock, shares (in shares)	2,480	2,480