Finance Receivables (Detail Textuals 1)	6 Months Ended
	Sep. 30, 2021
Accounts Notes And Loans Receivable [Line Items]
Maximum criteria for receivable to be a performing account	61 days
Percentage of more than payment contractually for delinquent	10.00%
Minimum criteria for receivable to be a non-performing account	61 days
Minimum
Accounts Notes And Loans Receivable [Line Items]
Criteria for receivable to be delinquent account	121 days