RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS - Condensed Consolidated Balance Sheet Impact of Adjustment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Jul. 01, 2018	Jun. 30, 2018	Mar. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash and cash equivalents	$ 32,788			$ 83,964	$ 17,055
Accounts receivable	20,492			15,748	19,443
Finance receivables, net	6,119			4,603	2,234
Inventory, net	11,488			8,038	11,923
Prepaid expenses and other current assets	2,878		$ 1,180	929	1,278
Other assets	1,922		1,974	720	414
Finance receivables due after one year, net	11,362			13,246	9,870
Property and equipment, net	9,116			11,273	12,243
Goodwill	64,149			64,149	64,149
Accounts payable	26,058			30,468	29,574
Accrued expenses	19,974			19,291	18,508
Capital lease obligation and current obligations under long-term debt	13,202			34,639	4,470
Deferred revenue	$ 1,322	$ 1,437	$ 1,638	$ 511	511
Deferred gain from sale-leaseback transactions					0
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash and cash equivalents					(52)
Accounts receivable					(3,723)
Finance receivables, net					(1,670)
Inventory, net					893
Prepaid expenses and other current assets					(591)
Other assets					(800)
Finance receivables due after one year, net					191
Property and equipment, net					45
Goodwill					(47)
Accounts payable					128
Accrued expenses					10,547
Capital lease obligation and current obligations under long-term debt					(5)
Deferred revenue					70
Deferred gain from sale-leaseback transactions					(198)
Audit Committee Investigation-related Adjustments | Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable					(1,954)
Finance receivables, net					(1,666)
Inventory, net					2,459
Prepaid expenses and other current assets					25
Other assets					69
Property and equipment, net					(146)
Accounts payable					99
Accrued expenses					341
Acquisition and Financial Integration-related Adjustments | Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash and cash equivalents					(52)
Accounts receivable					(1,974)
Finance receivables, net					(32)
Inventory, net					(500)
Prepaid expenses and other current assets					(44)
Other assets					(175)
Finance receivables due after one year, net					190
Property and equipment, net					826
Goodwill					4,121
Accrued expenses					883
Deferred revenue					(153)
Common stock					3,469
Significant Account and Transaction Review and Other | Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable					127
Finance receivables, net					28
Inventory, net					(1,067)
Prepaid expenses and other current assets					(173)
Other assets					(693)
Property and equipment, net					(635)
Accounts payable					29
Accrued expenses					9,877
Capital lease obligation and current obligations under long-term debt					(5)
Deferred revenue					(27)
Deferred gain from sale-leaseback transactions					(198)
Common stock					$ (582)