RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS - Restated Condensed Consolidated Statement of Cash Flows (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017
OPERATING ACTIVITIES:
Net income (loss)		$ (10,657)	$ (6,320)	$ (4,194)	$ (2,171)	$ (16,977)	$ (6,365)
Adjustments to reconcile net loss to net cash provided by operating activities:
Non-cash stock based compensation						972	984
(Gain) loss on disposal of property and equipment						(29)	(80)
Non-cash interest and amortization of debt discount						45	94
Bad debt expense						1,308	382
Provision for inventory reserve						1,211	1,091
Depreciation and amortization						4,257	3,278
Excess tax benefits						0	67
Deferred income taxes						9	(159)
Recognition of deferred gain from sale-leaseback transactions							0
Changes in operating assets and liabilities:
Accounts receivable						4,312	(5,332)
Finance receivables, net						348	7,332
Inventory, net						284	(7,615)
Prepaid expenses and other current assets						(1,588)	(2)
Accounts payable and accrued expenses						(11,095)	7,704
Deferred revenue						(201)	570
Income taxes payable						25	(40)
Net cash (used in) provided by operating activities						(17,119)	1,909
INVESTING ACTIVITIES:
Purchase of property and equipment, including rentals						(1,795)	(1,734)
Proceeds from sale of property and equipment, including rentals						82	157
Cash paid for acquisitions, net of cash acquired						0	(65,181)
Proceeds from collateralized borrowing from the transfer of finance receivables						(1,713)	(66,758)
FINANCING ACTIVITIES:
Proceeds from transfer of finance receivables	$ 1,100					0	1,075
Payment of debt issuance costs						(53)	(445)
Proceeds from issuance of long-term debt						0	25,100
Proceeds from revolving credit facility						0	10,000
Issuance of common stock in public offering, net						0	39,888
Repayment of line of credit						0	(7,111)
Repayment of capital lease obligations and long-term debt						(1,928)	(1,043)
Net cash (used in) provided by financing activities						(1,939)	67,464
Net increase in cash and cash equivalents						(20,771)	2,615
Cash and cash equivalents at beginning of year			$ 83,964		12,745	83,964	12,745
Cash and cash equivalents at end of period	15,360	$ 63,193		15,360		$ 63,193	15,360
Previously Reported
OPERATING ACTIVITIES:
Net income (loss)				(12,516)			(12,729)
Adjustments to reconcile net loss to net cash provided by operating activities:
Non-cash stock based compensation							1,356
(Gain) loss on disposal of property and equipment							(83)
Non-cash interest and amortization of debt discount							86
Bad debt expense							291
Provision for inventory reserve							0
Depreciation and amortization							3,476
Excess tax benefits							67
Deferred income taxes							8,537
Recognition of deferred gain from sale-leaseback transactions							(93)
Changes in operating assets and liabilities:
Accounts receivable							(5,290)
Finance receivables, net							7,958
Inventory, net							(5,822)
Prepaid expenses and other current assets							(606)
Accounts payable and accrued expenses							6,950
Deferred revenue							0
Income taxes payable							40
Net cash (used in) provided by operating activities							4,138
INVESTING ACTIVITIES:
Purchase of property and equipment, including rentals							(1,767)
Proceeds from sale of property and equipment, including rentals							157
Cash paid for acquisitions, net of cash acquired							(65,181)
Proceeds from collateralized borrowing from the transfer of finance receivables							(66,791)
FINANCING ACTIVITIES:
Proceeds from transfer of finance receivables							0
Payment of debt issuance costs							(445)
Proceeds from issuance of long-term debt							25,100
Proceeds from revolving credit facility							10,000
Issuance of common stock in public offering, net							39,888
Repayment of line of credit							0
Repayment of capital lease obligations and long-term debt							(9,249)
Net cash (used in) provided by financing activities							65,294
Net increase in cash and cash equivalents							2,641
Cash and cash equivalents at beginning of year					12,745		12,745
Cash and cash equivalents at end of period	15,386			15,386			15,386
Restatement Adjustment
OPERATING ACTIVITIES:
Net income (loss)				8,322			6,364
Adjustments to reconcile net loss to net cash provided by operating activities:
Non-cash stock based compensation							(372)
(Gain) loss on disposal of property and equipment							3
Non-cash interest and amortization of debt discount							8
Bad debt expense							91
Provision for inventory reserve							1,091
Depreciation and amortization							(198)
Excess tax benefits							0
Deferred income taxes							(8,696)
Recognition of deferred gain from sale-leaseback transactions							93
Changes in operating assets and liabilities:
Accounts receivable							(42)
Finance receivables, net							(626)
Inventory, net							(1,793)
Prepaid expenses and other current assets							604
Accounts payable and accrued expenses							754
Deferred revenue							570
Income taxes payable							(80)
Net cash (used in) provided by operating activities							(2,229)
INVESTING ACTIVITIES:
Purchase of property and equipment, including rentals							33
Proceeds from sale of property and equipment, including rentals							0
Cash paid for acquisitions, net of cash acquired							0
Proceeds from collateralized borrowing from the transfer of finance receivables							33
FINANCING ACTIVITIES:
Proceeds from transfer of finance receivables							1,075
Payment of debt issuance costs							0
Proceeds from issuance of long-term debt							0
Proceeds from revolving credit facility							0
Issuance of common stock in public offering, net							0
Repayment of line of credit							(7,111)
Repayment of capital lease obligations and long-term debt							8,206
Net cash (used in) provided by financing activities							2,170
Net increase in cash and cash equivalents							(26)
Cash and cash equivalents at beginning of year					$ 0		0
Cash and cash equivalents at end of period	$ (26)			$ (26)			$ (26)