Reinsurance and Policy Benefits and Losses, Claims and Loss Expenses Payable (Table Text Block)	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
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, 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                               Year ended December 31, 2017                       Life insurance in force $ 947,720 $ 248 $ 876,865 $ 1,824,337   48 % Premiums earned:                       Life $ 51,227 $ 4 $ 9,880 $ 61,103   16 % Accident and health   90,396   295   1,977   92,078   2 % Annuity   728   –   794   1,522   52 % Property and casualty   57,161   69   8   57,100   – % Total $ 199,512 $ 368 $ 12,659 $ 211,803
Schedule of Effect of Reinsurance [Table Text Block]	December 31,     2019   2018     (In thousands) Unpaid losses and loss adjustment expense $ 209,127 $ 228,970 Reinsurance losses payable   1,214   988 Total $ 210,341 $ 229,958
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]	December 31,     2019   2018   2017     (In thousands) Balance at January 1 $ 228,970 $ 233,554 $ 244,400 Less: reinsurance recoverable   94,920   94,490   103,952 Net balance at January 1   134,050   139,064   140,448 Incurred related to:             Current year   22,137   19,579   15,749 Prior years   (9,535)   (5,365)   233 Total incurred   12,602   14,214   15,982 Paid related to:             Current year   7,366   8,838   8,969 Prior years   17,242   10,390   8,397 Total paid   24,608   19,228   17,366 Net balance at December 31   122,044   134,050   139,064 Plus: reinsurance recoverable   87,083   94,920   94,490 Balance at December 31 $ 209,127 $ 228,970 $ 233,554
Shortduration Insurance Contracts Claims Development [Table Text Block]	Cumulative Incurred Claims and Allocted Claims Adjustment Expenses, Net of Reinsurance                                 As of                                 December 31, 2019                                 Total of                                     Incurred-but-                                     Not-Reported                                     Liabilities Plus                                     Expected   Cumulative                                 Development   Number of Accident                               on Reported   Reported Year   2013   2014   2015   2016   2017   2018   2019   Claims   Claims         (In thousands, except claim counts)     2013 $ 9,861 $ 9,853 $ 9,914 $ 9,741 $ 9,576 $ 9,595 $ 9,594 $ –   7,652 2014       11,691   10,907   10,720   10,759   10,748   10,493   78   9,627 2015           12,214   12,459   12,460   12,464   11,087   –   10,652 2016               13,297   13,011   13,056   11,790   –   10,954 2017                   15,749   16,109   17,078   1,411   11,291 2018                       19,580   18,386   4,692   11,083 2019                           22,138   10,743   10,745                             Total   16,924	Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance         (In thousands) Accident                             Year   2013   2014   2015   2016   2017   2018   2019 2013 $ 5,227 $ 7,608 $ 8,718 $ 9,462 $ 9,576 $ 9,595 $ 9,594 2014       6,154   8,087   9,270   9,293   10,325   10,327 2015           7,509   9,601   9,730   10,343   11,087 2016               7,777   10,665   11,643   11,746 2017                   8,969   11,638   14,825 2018                       8,838   12,689 2019                           7,366                     Total   Total   77,634 All outstanding liabilities before 2013, net of reinsurance       99,113 Liabilities for claims and claim adjustment expenses, net of reinsurance       122,044
Shortduration Insurance Contracts Reconciliation Of Claims Development To Liability [Table Text Block]	December 31, 2019     (In thousands) Liabilities for unpaid Property and Casualty claims     and claim adjustment expenses, net of reinsurance $ 122,044       Total reinsurance recoverable on unpaid     Property and Casualty claims $ 87,083       Total gross liability for unpaid Property and Casualty     claims and claim adjustment expense $ 209,127
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   54.4 % 20.5 % 10.2 % 3.6 % 5.9 % 0.1 % – %