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Fair Value Of Financial Instruments (Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details) - Recurring [Member] - USD ($)
$ in Thousands
Sep. 30, 2023
Jun. 30, 2023
Sep. 30, 2022
Jun. 30, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investment $ 0 $ 0    
Cash, cash equivalents and restricted cash (included in other long-term assets) 251 258    
Fixed maturity investments (included in cash and cash equivalents) 3,661 3,119    
Total assets at fair value 3,912 3,377    
Quoted Price In Active Markets For Identical Assets (Level 1) [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investment 0 0    
Cash, cash equivalents and restricted cash (included in other long-term assets) 251 258    
Fixed maturity investments (included in cash and cash equivalents) 3,661 3,119    
Total assets at fair value 3,912 3,377    
Significant Other Observable Inputs (Level 2) [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investment 0 0    
Cash, cash equivalents and restricted cash (included in other long-term assets) 0 0    
Fixed maturity investments (included in cash and cash equivalents) 0 0    
Total assets at fair value 0 0    
Significant Unobservable Inputs (Level 3) [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investment 0 0    
Cash, cash equivalents and restricted cash (included in other long-term assets) 0 0    
Fixed maturity investments (included in cash and cash equivalents) 0 0    
Total assets at fair value $ 0 $ 0 $ 0 $ 0