Allowance for Credit Losses (Table Text Block)	12 Months Ended
	Mar. 31, 2021
Allowance For Credit Loss [Abstract]
Accounts Receivable Allowance For Credit Loss [Table Text Block]	Allowance for Credit Losses     Trade Receivables   Investments, Fixed Maturities   Investments, other   Total                       (In thousands)     Balance as of March 31, 2020 $ 2,680 $ 503 $ 501 $ 3,684 Transition adjustment current expected credit losses   155   817   -   972 Write-offs against allowance   -   -   -   - Recoveries   -   -   -   - Balance as of March 31, 2021 $ 2,835 $ 1,320 $ 501 $ 4,656