Reinsurance and Policy Benefits and Losses, Claims and Loss Expenses Payable (Table Text Block)	12 Months Ended
	Mar. 31, 2021
Supplemental Schedule Of Reinsurance Premiums For Insurance Companies [Abstract]
Supplemental Schedule Of Reinsurance Premiums For Insurance Companies [Table Text Block]	Direct Amount (a)   Ceded to Other Companies   Assumed from Other Companies   Net Amount (a)   Percentage of Amount Assumed to Net       (In thousands)   Year ended December 31, 2020                       Life insurance in force $ 1,031,634 $ 73 $ 356,266 $ 1,387,827   26 % Premiums earned:                       Life $ 58,048 $ 1 $ 5,049 $ 63,096   8 % Accident and health   57,081   211   1,388   58,258   2 % Annuity   221   -   34   255   13 % Property and casualty   70,285   -   -   70,285   - % Total $ 185,635 $ 212 $ 6,471 $ 191,894                               Year ended December 31, 2019                       Life insurance in force $ 957,280 $ 7 $ 441,563 $ 1,398,836   32 % Premiums earned:                       Life $ 53,289 $ 1 $ 5,629 $ 58,917   10 % Accident and health   66,863   226   1,563   68,200   2 % Annuity   65   -   794   859   92 % Property and casualty   69,126   -   15   69,141   - % Total $ 189,343 $ 227 $ 8,001 $ 197,117                               Year ended December 31, 2018                       Life insurance in force $ 941,822 $ 207 $ 548,152 $ 1,489,767   37 % Premiums earned:                       Life $ 51,691 $ (1) $ (69,616) $ (17,924)   388 % Accident and health   77,813   267   1,851   79,397   2 % Annuity   1,221   -   794   2,015   39 % Property and casualty   60,848   -   -   60,848   - % Total $ 191,573 $ 266 $ (66,971) $ 124,336
Schedule of Effect of Reinsurance [Table Text Block]	December 31,     2020   2019     (In thousands) Unpaid losses and loss adjustment expense $ 177,963 $ 209,127 Reinsurance losses payable   979   1,214 Total $ 178,942 $ 210,341
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]	December 31,     2020   2019   2018     (In thousands) Balance at January 1 $ 209,127 $ 228,970 $ 233,554 Less: reinsurance recoverable   87,083   94,920   94,490 Net balance at January 1   122,044   134,050   139,064 Incurred related to:             Current year   20,670   22,137   19,579 Prior years   (3,865)   (9,535)   (5,365) Total incurred   16,805   12,602   14,214 Paid related to:             Current year   7,664   7,366   8,838 Prior years   18,095   17,242   10,390 Total paid   25,759   24,608   19,228 Net balance at December 31   113,090   122,044   134,050 Plus: reinsurance recoverable   64,873   87,083   94,920 Balance at December 31 $ 177,963 $ 209,127 $ 228,970
Shortduration Insurance Contracts Claims Development [Table Text Block]	Cumulative Incurred Claims and Allocated Claims Adjustment Expenses, Net of Reinsurance                                 As of                                 December 31, 2020                                 Total of                                     Incurred-but-                                     Not-Reported                                     Liabilities Plus                                     Expected   Cumulative                                 Development   Number of Accident                               on Reported   Reported Year   2014   2015   2016   2017   2018   2019   2020   Claims   Claims         (In thousands, except claim counts)     2014 $ 11,691 $ 10,907 $ 10,720 $ 10,759 $ 10,748 $ 10,493 $ 10,327 $ -   10,068 2015       12,214   12,459   12,460   12,464   11,087   11,092   -   11,104 2016           13,297   13,011   13,056   11,790   11,764   -   11,469 2017               15,748   16,109   17,078   15,538   305   12,100 2018                   19,580   18,386   18,027   1,464   11,981 2019                       22,138   26,316   4,379   11,738 2020                           20,671   10,137   11,199                             Total   16,285       The following table presents paid claims development as of December 31, 2020, net of reinsurance. Claims data for 2014 through 2019 is unaudited. Claims data for 2020 is audited.   Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance     (In thousands) Accident                             Year   2014   2015   2016   2017   2018   2019   2020 2014 $ 6,154 $ 8,087 $ 9,270 $ 9,293 $ 10,325 $ 10,327 $ 10,327 2015       7,509   9,601   9,730   10,343   11,087   11,092 2016           7,777   10,665   11,643   11,746   11,764 2017               8,970   11,638   14,825   15,012 2018                   8,838   12,698   15,150 2019                       7,366   14,737 2020                           7,665                     Total   Total   85,747 All outstanding liabilities before 2014, net of reinsurance       85,101 Liabilities for claims and claim adjustment expenses, net of reinsurance       113,090
Shortduration Insurance Contracts Reconciliation Of Claims Development To Liability [Table Text Block]	December 31, 2020     (In thousands) Liabilities for unpaid Property and Casualty claims     and claim adjustment expenses, net of reinsurance $ 113,090       Total reinsurance recoverable on unpaid     Property and Casualty claims $ 64,873       Total gross liability for unpaid Property and Casualty     claims and claim adjustment expense $ 177,963
Shortduration Insurance Contracts Schedule Of Historical Claims Duration [Table Text Block]	Average Annual Percentage Payout of Incurred Claims by Age, net of Reinsurance     (In percentages)   Years   1   2   3   4   5   6   7   Property and Casualty Insurance   52.2 % 21.4 % 11.0 % 2.0 % 5.6 % - % - %