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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Preferred Stock, Par Value Per Share $ 1.00  
Preferred Stock, Shares Authorized 20,000,000  
Accumulated Depreciation, Property, Plant, and Equipment $ 4.4 $ 4.3
Common Class A [Member]    
Common Stock, Par or Stated Value Per Share $ 0.10  
Common Stock, Shares, Outstanding 15,281,474 14,956,434
Common Stock, Shares Authorized 70,000,000  
Common Stock, Shares, Issued 15,281,474 14,956,434
Common Class B [Member]    
Common Stock, Par or Stated Value Per Share $ 0.10  
Common Stock, Shares, Outstanding 719,200 719,200
Common Stock, Shares Authorized 30,000,000  
Common Stock, Shares, Issued 719,200 719,200