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Consolidated Balance Sheets (Parentheticals) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Accounts Receivable, Allowance for Credit Loss, Current $ 3 $ 3
Inventory, allowance $ 30 $ 218
Preferred Stock, Shares Authorized (in shares) 5,000,000  
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.01 $ 0.01
Common Stock, Shares Authorized (in shares) 150,000,000 150,000,000
Common Stock, Shares, Issued (in shares) 4,885,000 321,000
Common Stock, Shares, Outstanding (in shares) 4,885,000 321,000
Series B Preferred Stock [Member]    
Preferred Stock, Par or Stated Value Per Share (in dollars per share) $ 0.01 $ 0.01
Preferred Stock, Shares Authorized (in shares) 5,000,000 5,000,000
Preferred Stock, Shares Outstanding (in shares) 1,000 6,000
Preferred Stock, Shares Issued (in shares) 1,000 6,000
Series C Preferred Stock [Member]    
Preferred Stock, Shares Outstanding (in shares) 0 1,000
Preferred Stock, Shares Issued (in shares) 0 1,000