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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
 3 Months Ended 9 Months Ended 12 Months Ended
Jul. 02, 2021
Jul. 01, 2021
Jun. 29, 2021
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2025
Dec. 31, 2024
Preferred stock, dividend rate       8.875% 8.875% 8.875% 8.875% 8.875% 8.875%    
Common Stock, Par Value (in dollars per share)       $ 0.01           $ 0.01 $ 0.01
Common Stock, Shares Authorized (in shares)       100,000,000           100,000,000 100,000,000
Common Stock, Shares, Issued (in shares)       82,025,586           82,025,586 75,353,889
Common Stock, Shares, Outstanding (in shares)       82,025,586           82,025,586 75,353,889
Series 1 Preferred Stock [Member]                      
Preferred stock, par value (in dollars per share)       $ 0.01           $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares)       100,000           100,000 100,000
Preferred stock, shares issued (in shares)       329           329 329
Preferred stock, shares outstanding (in shares)       329           329 329
Series A Preferred Stock [Member]                      
Preferred stock, par value (in dollars per share)   $ 0.01   $ 0.01           $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares)   7,500   7,500           7,500 7,500
Preferred stock, shares issued (in shares)       2,300           2,300 2,300
Preferred stock, shares outstanding (in shares)       2,300           2,300 2,300
Preferred stock, dividend rate 8.875% 8.875% 8.875%             8.875% 8.875%