Finance Receivables (Detail Textuals) - USD ($)	3 Months Ended	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchase of contract loans	$ 1,100,000	$ 66,572,000	$ 56,266,000
Direct Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of direct loan to total loan portfolio	5.40%	5.40%
Minimum | Direct Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables, net	$ 500	$ 500
Maximum | Direct Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables, net	$ 11,000	$ 11,000