Finance Receivables - Assessment of credit quality by creditworthiness (Details 3) - Finance receivables - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2021
Accounts Notes And Loans Receivable [Line Items]
Total	$ 179,808	$ 180,650
Finance receivables	180,053	180,823
Chapter 13 bankruptcy
Accounts Notes And Loans Receivable [Line Items]
Finance receivables	245	173
Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	26,779	15,721	$ 24,376
Finance receivables	26,788	15,732
Direct Loans | Chapter 13 bankruptcy
Accounts Notes And Loans Receivable [Line Items]
Finance receivables	9	11
Performing accounts
Accounts Notes And Loans Receivable [Line Items]
Total	173,803	177,298
Performing accounts | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	26,292	15,598
Non-performing accounts
Accounts Notes And Loans Receivable [Line Items]
Total	6,005	3,352
Non-performing accounts | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	487	123
Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	153,029	164,929	$ 154,143
Finance receivables	153,265	165,091
Contract Portfolio | Chapter 13 bankruptcy
Accounts Notes And Loans Receivable [Line Items]
Finance receivables	236	162
Contract Portfolio | Performing accounts
Accounts Notes And Loans Receivable [Line Items]
Total	147,511	161,700
Contract Portfolio | Non-performing accounts
Accounts Notes And Loans Receivable [Line Items]
Total	$ 5,518	$ 3,229