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Note 7 - Unpaid Losses and Settlement Expenses - Short Duration Insurance Contracts, Claims Development (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Incurred claims and allocated claim adjustment expense $ 322,949                  
Cumulative paid claims and allocated adjustment expense 264,165                  
Unpaid losses and settlement expense, net of reinsurance 59,101                  
Short-Duration Insurance Contracts, Accident Year 2014 [Member]                    
Incurred claims and allocated claim adjustment expense $ 24,858 $ 24,789 $ 24,721 $ 24,737 $ 24,781 $ 24,698 $ 24,601 $ 23,139 $ 22,330 $ 22,250
Number of reported claims 1,953                  
Incurred but not reported $ 78                  
Cumulative paid claims and allocated adjustment expense 24,567 24,554 24,204 24,175 23,707 23,027 21,398 17,261 11,718 7,782
Short-Duration Insurance Contracts, Accident Year 2015 [Member]                    
Incurred claims and allocated claim adjustment expense $ 23,144 22,852 22,817 22,350 22,140 21,496 21,157 21,370 24,289  
Number of reported claims 1,649                  
Incurred but not reported $ 40                  
Cumulative paid claims and allocated adjustment expense 22,817 22,121 21,577 20,919 20,147 18,173 14,878 11,359 6,465  
Short-Duration Insurance Contracts, Accident Year 2016 [Member]                    
Incurred claims and allocated claim adjustment expense $ 27,199 26,995 26,740 25,951 25,236 24,612 22,824 25,618    
Number of reported claims 1,618                  
Incurred but not reported $ 56                  
Cumulative paid claims and allocated adjustment expense 26,859 26,002 25,114 22,643 20,561 16,425 13,112 7,654    
Short-Duration Insurance Contracts, Accident Year 2017 [Member]                    
Incurred claims and allocated claim adjustment expense $ 31,336 31,642 30,689 29,802 29,583 29,371 29,801      
Number of reported claims 1,757                  
Incurred but not reported $ 44                  
Cumulative paid claims and allocated adjustment expense 30,847 30,592 28,134 25,473 22,363 18,901 11,578      
Short-Duration Insurance Contracts, Accident Year 2018 [Member]                    
Incurred claims and allocated claim adjustment expense $ 27,563 27,654 27,955 28,048 28,236 29,762        
Number of reported claims 1,857                  
Incurred but not reported $ 178                  
Cumulative paid claims and allocated adjustment expense 26,878 25,805 23,481 20,337 16,665 10,451        
Short-Duration Insurance Contract, Accident Year 2019 [Member]                    
Incurred claims and allocated claim adjustment expense $ 34,427 34,442 34,551 33,958 33,563          
Number of reported claims 1,929                  
Incurred but not reported $ 419                  
Cumulative paid claims and allocated adjustment expense 31,243 29,683 26,987 21,614 15,285          
Short-Duration Insurance Contract, Accident Year 2020 [Member]                    
Incurred claims and allocated claim adjustment expense $ 31,666 30,457 29,162 31,356            
Number of reported claims 1,577                  
Incurred but not reported $ 837                  
Cumulative paid claims and allocated adjustment expense 28,209 23,566 19,367 13,055            
Short-Duration Insurance Contract, Accident Year 2021 [Member]                    
Incurred claims and allocated claim adjustment expense $ 39,269 36,787 33,968              
Number of reported claims 1,612                  
Incurred but not reported $ 2,105                  
Cumulative paid claims and allocated adjustment expense 30,516 22,537 14,740              
Short-Duration Insurance Contract, Accident Year 2022 [Member]                    
Incurred claims and allocated claim adjustment expense $ 38,106 39,434                
Number of reported claims 1,555                  
Incurred but not reported $ 4,532                  
Cumulative paid claims and allocated adjustment expense 25,770 16,512                
Short-Duration Insurance Contract, Accident Year 2023 [Member]                    
Incurred claims and allocated claim adjustment expense $ 45,381
Number of reported claims 1,219                  
Incurred but not reported $ 21,038                  
Cumulative paid claims and allocated adjustment expense 16,459                  
Short -duration Insurance Contracts, Last Ten Years [Member]                    
Unpaid losses and settlement expense - years 2014 through 2023 58,784                  
Short-duration Insurance Contracts, Prior Accident Years [Member]                    
Unpaid losses and settlement expense - years 2014 through 2023 317                  
Property Insurance [Member]                    
Incurred claims and allocated claim adjustment expense 127,891                  
Cumulative paid claims and allocated adjustment expense 125,291                  
Unpaid losses and settlement expense, net of reinsurance 2,611                  
Property Insurance [Member] | Short-Duration Insurance Contracts, Accident Year 2014 [Member]                    
Incurred claims and allocated claim adjustment expense $ 7,794 7,794 7,792 7,784 7,785 7,817 7,883 7,798 7,586 8,865
Number of reported claims 740                  
Cumulative paid claims and allocated adjustment expense $ 7,805 7,805 7,803 7,801 7,795 7,795 7,796 7,746 7,631 6,243
Property Insurance [Member] | Short-Duration Insurance Contracts, Accident Year 2015 [Member]                    
Incurred claims and allocated claim adjustment expense $ 7,643 7,642 7,635 7,636 7,654 7,634 7,717 7,494 7,693  
Number of reported claims 554                  
Incurred but not reported $ 0                  
Cumulative paid claims and allocated adjustment expense 7,643 7,642 7,645 7,657 7,660 7,645 7,474 7,040 5,057  
Property Insurance [Member] | Short-Duration Insurance Contracts, Accident Year 2016 [Member]                    
Incurred claims and allocated claim adjustment expense $ 8,392 8,387 8,327 8,404 8,381 8,372 7,981 8,941    
Number of reported claims 576                  
Incurred but not reported $ (5)                  
Cumulative paid claims and allocated adjustment expense 8,397 8,384 8,465 8,437 8,356 8,236 7,624 6,157    
Property Insurance [Member] | Short-Duration Insurance Contracts, Accident Year 2017 [Member]                    
Incurred claims and allocated claim adjustment expense $ 13,457 13,593 13,622 13,825 13,741 13,568 13,993      
Number of reported claims 715                  
Incurred but not reported $ (16)                  
Cumulative paid claims and allocated adjustment expense 13,469 13,451 13,363 13,595 13,610 13,482 10,055      
Property Insurance [Member] | Short-Duration Insurance Contracts, Accident Year 2018 [Member]                    
Incurred claims and allocated claim adjustment expense $ 11,108 11,073 11,030 10,966 11,114 11,454        
Number of reported claims 725                  
Incurred but not reported $ (36)                  
Cumulative paid claims and allocated adjustment expense 11,144 11,117 11,062 11,025 11,009 8,487        
Property Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2019 [Member]                    
Incurred claims and allocated claim adjustment expense $ 15,145 15,078 14,976 14,758 13,933          
Number of reported claims 833                  
Incurred but not reported $ (14)                  
Cumulative paid claims and allocated adjustment expense 14,974 14,902 14,855 14,161 11,621          
Property Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2020 [Member]                    
Incurred claims and allocated claim adjustment expense $ 16,005 15,195 15,056 13,997            
Number of reported claims 937                  
Incurred but not reported $ (52)                  
Cumulative paid claims and allocated adjustment expense 15,786 15,540 14,485 10,620            
Property Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2021 [Member]                    
Incurred claims and allocated claim adjustment expense $ 15,392 14,799 12,968              
Number of reported claims 747                  
Incurred but not reported $ (287)                  
Cumulative paid claims and allocated adjustment expense 15,603 14,712 11,220              
Property Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2022 [Member]                    
Incurred claims and allocated claim adjustment expense $ 16,523 16,568                
Number of reported claims 746                  
Incurred but not reported $ (298)                  
Cumulative paid claims and allocated adjustment expense 16,534 12,898                
Property Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2023 [Member]                    
Incurred claims and allocated claim adjustment expense $ 16,433                  
Number of reported claims 641                  
Incurred but not reported $ 593                  
Cumulative paid claims and allocated adjustment expense 13,934                  
Property Insurance [Member] | Short -duration Insurance Contracts, Last Ten Years [Member]                    
Unpaid losses and settlement expense - years 2014 through 2023 2,600                  
Property Insurance [Member] | Short-duration Insurance Contracts, Prior Accident Years [Member]                    
Unpaid losses and settlement expense - years 2014 through 2023 11                  
Accident and Health Insurance Product Line [Member]                    
Incurred claims and allocated claim adjustment expense 195,058                  
Cumulative paid claims and allocated adjustment expense 138,874                  
Unpaid losses and settlement expense, net of reinsurance 56,490                  
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contracts, Accident Year 2014 [Member]                    
Incurred claims and allocated claim adjustment expense $ 17,064 16,995 16,930 16,954 16,996 16,881 16,719 15,341 14,744 13,385
Number of reported claims 1,213                  
Incurred but not reported $ 78                  
Cumulative paid claims and allocated adjustment expense 16,762 16,750 16,401 16,374 15,912 15,232 13,603 9,515 4,088 $ 1,540
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contracts, Accident Year 2015 [Member]                    
Incurred claims and allocated claim adjustment expense $ 15,501 15,209 15,182 14,714 14,486 13,862 13,441 13,876 16,597  
Number of reported claims 1,095                  
Incurred but not reported $ 40                  
Cumulative paid claims and allocated adjustment expense 15,174 14,478 13,932 13,262 12,487 10,528 7,404 4,319 $ 1,408  
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contracts, Accident Year 2016 [Member]                    
Incurred claims and allocated claim adjustment expense $ 18,807 18,608 18,412 17,546 16,855 16,240 14,843 16,678    
Number of reported claims 1,042                  
Incurred but not reported $ 61                  
Cumulative paid claims and allocated adjustment expense 18,461 17,618 16,649 14,206 12,205 8,189 5,488 $ 1,497    
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contracts, Accident Year 2017 [Member]                    
Incurred claims and allocated claim adjustment expense $ 17,879 18,049 17,068 15,976 15,842 15,803 15,808      
Number of reported claims 1,042                  
Incurred but not reported $ 60                  
Cumulative paid claims and allocated adjustment expense 17,378 17,141 14,770 11,878 8,753 5,419 $ 1,523      
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contracts, Accident Year 2018 [Member]                    
Incurred claims and allocated claim adjustment expense $ 16,455 16,581 16,925 17,082 17,122 18,308        
Number of reported claims 1,132                  
Incurred but not reported $ 214                  
Cumulative paid claims and allocated adjustment expense 15,734 14,687 12,419 9,312 5,656 $ 1,964        
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contract, Accident Year 2019 [Member]                    
Incurred claims and allocated claim adjustment expense $ 19,282 19,364 19,575 19,200 19,630          
Number of reported claims 1,096                  
Incurred but not reported $ 433                  
Cumulative paid claims and allocated adjustment expense 16,268 14,781 12,132 7,453 $ 3,664          
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contract, Accident Year 2020 [Member]                    
Incurred claims and allocated claim adjustment expense $ 15,661 15,262 14,107 17,359            
Number of reported claims 640                  
Incurred but not reported $ 889                  
Cumulative paid claims and allocated adjustment expense 12,422 8,026 4,882 $ 2,435            
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contract, Accident Year 2021 [Member]                    
Incurred claims and allocated claim adjustment expense $ 23,877 21,988 21,000              
Number of reported claims 865                  
Incurred but not reported $ 2,392                  
Cumulative paid claims and allocated adjustment expense 14,913 7,825 $ 3,520              
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contract, Accident Year 2022 [Member]                    
Incurred claims and allocated claim adjustment expense $ 21,583 22,866                
Number of reported claims 809                  
Incurred but not reported $ 4,830                  
Cumulative paid claims and allocated adjustment expense 9,236 $ 3,614                
Accident and Health Insurance Product Line [Member] | Short-Duration Insurance Contract, Accident Year 2023 [Member]                    
Incurred claims and allocated claim adjustment expense $ 28,948                  
Number of reported claims 578                  
Incurred but not reported $ 20,445                  
Cumulative paid claims and allocated adjustment expense 2,525                  
Accident and Health Insurance Product Line [Member] | Short -duration Insurance Contracts, Last Ten Years [Member]                    
Unpaid losses and settlement expense - years 2014 through 2023 56,184                  
Accident and Health Insurance Product Line [Member] | Short-duration Insurance Contracts, Prior Accident Years [Member]                    
Unpaid losses and settlement expense - years 2014 through 2023 $ 306