RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS - Restated Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended						9 Months Ended
	Dec. 31, 2017	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Mar. 31, 2019	Mar. 31, 2018
OPERATING ACTIVITIES:
Net loss		$ (4,510)	$ (10,657)	$ (6,320)	$ (3,223)	$ (4,194)	$ (2,171)	$ (21,487)	$ (9,588)
Adjustments to reconcile net loss to net cash provided by operating activities:
Non-cash stock based compensation								1,393	1,424
(Gain) loss on disposal of property and equipment								(39)	(99)
Non-cash interest and amortization of debt discount								286	118
Bad debt expense								1,537	510
Provision for inventory reserve								2,699	1,361
Depreciation and amortization								6,300	5,586
Excess tax benefits								0	67
Deferred income taxes								14	(154)
Recognition of deferred gain from sale-leaseback transactions									0
Changes in operating assets and liabilities:
Accounts receivable								(6,283)	(9,964)
Finance receivables, net								368	8,202
Sale of finance receivables								0	2,051
Inventory, net								(5,349)	(7,777)
Prepaid expenses and other current assets								(1,545)	355
Accounts payable and accrued expenses								(3,866)	15,255
Deferred revenue								(316)	351
Income taxes payable								42	(30)
Net cash (used in) provided by operating activities								(26,246)	7,668
INVESTING ACTIVITIES:
Purchase of property and equipment, including rentals								(2,627)	(3,138)
Proceeds from sale of property and equipment, including rentals								103	252
Cash paid for acquisitions, net of cash acquired								0	(65,181)
Net cash used in investing activities								(2,524)	(68,067)
FINANCING ACTIVITIES:
Proceeds from collateralized borrowing from the transfer of finance receivables	$ 1,100							0	1,075
Proceeds from exercise of common stock options								42	109
Payment of debt issuance costs								(135)	(445)
Proceeds from issuance of long-term debt								0	25,100
Proceeds from revolving credit facility								0	12,500
Repayment of revolving credit facility								0	(2,500)
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								(22,313)	(3,751)
Cash used in retirement of common stock								0	(156)
Net cash provided by financing activities								(22,406)	64,709
Net (decrease) increase in cash and cash equivalents								(51,176)	4,310
Cash and cash equivalents at beginning of year				$ 83,964			12,745	83,964	12,745
Cash and cash equivalents at end of period		$ 32,788			17,055			$ 32,788	17,055
As Previously Reported
OPERATING ACTIVITIES:
Net loss					1,160				(11,569)
Adjustments to reconcile net loss to net cash provided by operating activities:
Non-cash stock based compensation									2,005
(Gain) loss on disposal of property and equipment									(112)
Non-cash interest and amortization of debt discount									100
Bad debt expense									506
Provision for inventory reserve									0
Depreciation and amortization									5,858
Excess tax benefits									67
Deferred income taxes									6,400
Recognition of deferred gain from sale-leaseback transactions									(143)
Changes in operating assets and liabilities:
Accounts receivable									(12,972)
Finance receivables, net									11,114
Sale of finance receivables									0
Inventory, net									(5,624)
Prepaid expenses and other current assets									(564)
Accounts payable and accrued expenses									13,808
Deferred revenue									(185)
Income taxes payable									0
Net cash (used in) provided by operating activities									8,689
INVESTING ACTIVITIES:
Purchase of property and equipment, including rentals									(3,005)
Proceeds from sale of property and equipment, including rentals									252
Cash paid for acquisitions, net of cash acquired									(65,181)
Net cash used in investing activities									(67,934)
FINANCING ACTIVITIES:
Proceeds from collateralized borrowing from the transfer of finance receivables									0
Proceeds from exercise of common stock options									109
Payment of debt issuance costs									(445)
Proceeds from issuance of long-term debt									25,100
Proceeds from revolving credit facility									12,500
Repayment of revolving credit facility									(2,500)
Issuance of common stock in public offering, net									39,888
Repayment of line of credit									(7,111)
Repayment of capital lease obligations and long-term debt									(3,778)
Cash used in retirement of common stock									(156)
Net cash provided by financing activities									63,607
Net (decrease) increase in cash and cash equivalents									4,362
Cash and cash equivalents at beginning of year							12,745		12,745
Cash and cash equivalents at end of period					17,107				17,107
Adjustment
OPERATING ACTIVITIES:
Net loss					(4,383)				1,981
Adjustments to reconcile net loss to net cash provided by operating activities:
Non-cash stock based compensation									(581)
(Gain) loss on disposal of property and equipment									13
Non-cash interest and amortization of debt discount									18
Bad debt expense									4
Provision for inventory reserve									1,361
Depreciation and amortization									(272)
Excess tax benefits									0
Deferred income taxes									(6,554)
Recognition of deferred gain from sale-leaseback transactions									143
Changes in operating assets and liabilities:
Accounts receivable									3,008
Finance receivables, net									(2,912)
Sale of finance receivables									2,051
Inventory, net									(2,153)
Prepaid expenses and other current assets									919
Accounts payable and accrued expenses									1,447
Deferred revenue									536
Income taxes payable									(30)
Net cash (used in) provided by operating activities									(1,021)
INVESTING ACTIVITIES:
Purchase of property and equipment, including rentals									(133)
Proceeds from sale of property and equipment, including rentals									0
Cash paid for acquisitions, net of cash acquired									0
Net cash used in investing activities									(133)
FINANCING ACTIVITIES:
Proceeds from collateralized borrowing from the transfer of finance receivables									1,075
Proceeds from exercise of common stock options									0
Payment of debt issuance costs									0
Proceeds from issuance of long-term debt									0
Proceeds from revolving credit facility									0
Repayment of revolving credit facility									0
Issuance of common stock in public offering, net									0
Repayment of line of credit									0
Repayment of capital lease obligations and long-term debt									27
Cash used in retirement of common stock									0
Net cash provided by financing activities									1,102
Net (decrease) increase in cash and cash equivalents									(52)
Cash and cash equivalents at beginning of year							$ 0		0
Cash and cash equivalents at end of period					$ (52)				$ (52)