Finance Receivables - Assessment of credit quality by creditworthiness (Details 3) - Finance receivables - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Accounts Notes And Loans Receivable [Line Items]
Total	$ 208,627	$ 235,409
Finance receivables	208,808	235,931
Chapter 13 bankruptcy
Accounts Notes And Loans Receivable [Line Items]
Finance receivables	181	522
Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	11,684	8,698
Finance receivables	11,684	8,701
Direct Loans | Chapter 13 bankruptcy
Accounts Notes And Loans Receivable [Line Items]
Finance receivables	0	3
Performing accounts
Accounts Notes And Loans Receivable [Line Items]
Total	203,512	228,321
Performing accounts | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	11,524	8,549
Non-performing accounts
Accounts Notes And Loans Receivable [Line Items]
Total	5,115	7,088
Non-performing accounts | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	160	149
Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	196,943	226,711
Finance receivables	197,124	227,230
Contract Portfolio | Chapter 13 bankruptcy
Accounts Notes And Loans Receivable [Line Items]
Finance receivables	181	519
Contract Portfolio | Performing accounts
Accounts Notes And Loans Receivable [Line Items]
Total	191,988	219,772
Contract Portfolio | Non-performing accounts
Accounts Notes And Loans Receivable [Line Items]
Total	$ 4,955	$ 6,939