Net Investment and Interest Income (Table Text Block)	12 Months Ended
	Mar. 31, 2021
Table Text Block [Abstract]
Net Investment and Interest Income	Years Ended March 31,     2021   2020   2019     (In thousands) Fixed maturities $ 102,021 $ 107,434 $ 99,348 Real estate   5,769   7,304   5,538 Insurance policy loans   829   974   1,305 Mortgage loans   18,248   17,164   16,674 Short-term, amounts held by ceding reinsurers, net and other investments   3,103   9,807   (7,429) Investment income   129,970   142,683   115,436 Less: investment expenses   (7,032)   (4,854)   (4,502) Investment income - related party, net eliminations   -   -   - Net investment and interest income $ 122,938 $ 137,829 $ 110,934