Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss	$ (11,363)	$ (29,181)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Stock based compensation	6,366	2,453
Amortization of debt discount and issuance costs	2,696	1,040
Provision for expected losses	459	1,400
Provision for inventory reserve	768	(434)
Depreciation and amortization included in operating expenses	3,111	3,209
Depreciation included in cost of sales for rental equipment	1,055	1,984
Change in fair value of derivative	0	(1,070)
Property and equipment write-off	1,658	0
Other	1,192	1,501
Changes in operating assets and liabilities:
Accounts receivable	(5,204)	2,088
Finance receivables	(252)	(113)
Inventory	2,297	2,204
Prepaid expenses and other assets	(1,343)	(1,045)
Accounts payable and accrued expenses	7,218	(500)
Operating lease liabilities	(795)	(1,102)
Deferred revenue	(28)	(60)
Net cash provided by (used in) operating activities	7,835	(17,626)
Cash flows from investing activities:
Purchase of property and equipment	(1,281)	(1,711)
Proceeds from sale of property and equipment	12	33
Net cash used in investing activities	(1,269)	(1,678)
Cash flows from financing activities:
Proceeds from long-term debt issuance by Antara, net of issuance costs paid to Antara	0	14,248
Payment of third-party debt issuance costs	0	(1,980)
Repayments of Revolving Credit Facility	0	(10,000)
Proceeds from long-term debt issuance by JPMorgan Chase Bank, N.A., net of debt issuance costs	14,550	0
Repayment of long-term debt	(15,554)	(2,413)
Proceeds from equity issuance by Antara, net of issuance costs paid to Antara	0	17,879
Proceeds from private placement	55,008	0
Payment of equity issuance costs	(2,598)	0
Proceeds from exercise of common stock options	77	0
Payment of Antara prepayment penalty and commitment termination fee	(1,200)	0
Net cash used provided by financing activities	50,283	17,734
Net increase (decrease) in cash and cash equivalents	56,849	(1,570)
Cash and cash equivalents at beginning of year	31,713	27,464
Cash and cash equivalents at end of period	88,562	25,894
Supplemental disclosures of cash flow information:
Interest paid in cash	$ 804	$ 940