FINANCE RECEIVABLES - Age analysis of past due finance receivables (Details) - QuickStart Leases - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 16,732	$ 19,617
30 and Under Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	40	29
31 - 60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	85	3
61 - 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	162	35
Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	120	35
Performing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	16,325	19,515
Nonperforming
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 407	$ 102