Finance Receivables - Assessment of credit quality by creditworthiness (Details 4) - Finance receivables - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Contracts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 275,326	$ 323,626
Finance receivables, net	278,812	327,506
Contracts | Performing accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	265,267	306,185
Contracts | Non-performing accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	10,059	17,441
Contracts | Chapter 13 bankrupt accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables, net	3,486	3,880
Direct Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	7,522	8,259
Finance receivables, net	7,579	8,298
Direct Loans | Performing accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	7,292	8,059
Direct Loans | Non-performing accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	230	200
Direct Loans | Chapter 13 bankrupt accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables, net	$ 57	$ 39