v3.25.2
Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Sep. 30, 2022
Dec. 31, 2021
Preferred stock, par value (in dollars per share) $ 0.01  
Preferred stock, shares authorized (in shares) 50,000,000  
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 400,000,000 400,000,000
Common stock, shares issued (in shares) 695,214 695,214
Common stock, shares outstanding (in shares) 657,084 657,084
Treasury stock, shares (in shares) 38,130 38,130
Series A Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 1,518,000 1,518,000
Preferred stock, shares issued (in shares) 256,636 256,636
Preferred stock, shares outstanding (in shares) 256,636 256,636
Preferred Stock, Liquidation Preference Per Share (in dollars per share) $ 10 $ 10
Series C Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 300,000 300,000
Preferred stock, shares issued (in shares) 231,944 231,944
Preferred stock, shares outstanding (in shares) 231,944 231,944
Preferred Stock, Liquidation Preference Per Share (in dollars per share) $ 10 $ 10