Finance Receivables (Detail Textuals 1) - USD ($)		3 Months Ended	9 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing 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
Troubled debt restructuring allowance for credit losses				$ 774,000,000
Additional reserve for bankruptcy			$ 0
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Criteria for receivable to be delinquent account	181 days
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Criteria for receivable to be delinquent account	121 days
Non-performing accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-offs		$ 100,000
Bankruptcy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-offs		$ 1,500,000