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Note 6 - Investments - Fixed Maturities by Contractual Maturity Periods (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Due in one year or less $ 6,899  
Due in one year or less, estimated fair value 6,797  
Due after one year through five years 25,865  
Due after one year through five years, estimated fair value 24,212  
Due after five years through ten years 1,368  
Due after five years through ten years, estimated fair value 1,214  
Due after ten years 4,449  
Due after ten years, estimated fair value 3,970  
Total 38,581 $ 40,127
Total, estimated fair value $ 36,193 $ 37,591