Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net loss	$ (23,899)	$ (29,579)	$ (25,504)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	9,732	18,043	18,296
Share-based compensation	12,289	13,629	12,638
Amortization of debt issuance costs	1,629	3,785	1,728
Amortization and accretion of discount and premium on investments	(15)	67	801
Loss on sales of investments	171
Accretion of interest on debt	3,376	4,052	6,321
Provision for (recovery of) bad debt, net	(73)	119	127
Provision for write-down of inventories	1,603	2,253	2,444
(Gain) loss on disposal of property and equipment	(8)	8	153
Loss on extinguishment of debt	3,452		965
Provision (benefit) for deferred income taxes	30	(268)	(404)
Changes in assets and liabilities:
Accounts receivable, short and long-term	7,223	(15,732)	16,994
Inventories	(8,685)	7,675	(10,502)
Prepaid expenses and other assets	4,209	(4,437)	16
Deferred cost of revenue	2,422	3,321	1,452
Accounts payable	2,002	2,189	2,404
Accrued liabilities	1,577	8,316	(1,944)
Customer advances	6,189	(5,158)	2,578
Deferred revenues	(4,893)	(8,663)	2,362
Net cash provided by (used in) operating activities	18,331	(380)	30,925
Cash flows from investing activities
Purchases of property and equipment, net	(6,276)	(5,031)	(8,066)
Purchase of intangible assets	(333)	(333)
Purchases of investments	(5,940)	(14,992)	(64,356)
Sales and maturities of investments	30,315	38,179	80,684
Net cash provided by investing activities	17,766	17,823	8,262
Cash flows from financing activities
Proceeds from employee stock plans	4,389	3,786	3,849
Taxes paid related to net share settlement of equity awards	(293)	(1,419)	(2,832)
Payments made to note and loan holders	(69,797)	(105,158)	(66,406)
Proceeds from debt, net of costs	66,111	48,253	64,632
Repayments under Revolving Credit Facility, net	(27,863)
Net cash used in financing activities	(27,453)	(54,538)	(757)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(346)	197	(1,006)
Net increase (decrease) in cash, cash equivalents and restricted cash	8,298	(36,898)	37,424
Cash, cash equivalents and restricted cash at beginning of period	85,235	122,133	84,709
Cash, cash equivalents and restricted cash at end of period	93,533	85,235	122,133
Supplemental Disclosure of Cash Flow Information
Cash paid for income taxes	1,460	4,458	1,026
Cash paid for interest	9,187	9,927	10,340
Non-cash financing activities:
Exchange of Convertible Notes	6,641
Modification of Revolving Credit Facility	1,997
Non-cash investing activities:
Unpaid purchase of property and equipment at end of year	399	210	218
Unpaid purchase of intangible assets at end of year		667
Transfers from inventory to property and equipment	$ 174	$ 1,395	$ 1,660