Allowance For Credit Losses (Table Text Block)	6 Months Ended
	Sep. 30, 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     (Unaudited)     (in thousands) Balance as of March 31, 2021 $ 2,835 $ 1,320 $ 501 $ 4,656 Allowance change   531   (1,141)   8   (602) Write-offs against allowance   –   –   –   – Recoveries   –   –   –   – Balance as of September 30, 2021$ 3,366 $ 179 $ 509 $ 4,054