Finance Receivables (Detail Textuals 1) - USD ($) $ in Thousands		6 Months Ended
	Feb. 28, 2019	Sep. 30, 2019	Sep. 30, 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		$ 232,000	$ 771,000
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