FINANCE RECEIVABLES - Age Analysis of Past Due Finance Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Financing Receivable, Past Due [Line Items]
Total finance receivables, less allowance of $7 and $12, respectively	$ 17,918	$ 17,861
QuickStart Leases
Financing Receivable, Past Due [Line Items]
Finance receivables, current	17,465	17,609
QuickStart Leases | 30 and Under Days Past Due
Financing Receivable, Past Due [Line Items]
Finance receivables, past due	126	56
QuickStart Leases | 31 – 60 Days Past Due
Financing Receivable, Past Due [Line Items]
Finance receivables, past due	44	7
QuickStart Leases | 61 – 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Finance receivables, past due	102	56
QuickStart Leases | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Finance receivables, past due	$ 181	$ 133