Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net income (loss)	$ 3,827	$ (16,430)	$ (23,899)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	7,541	10,491	9,732
Share-based compensation	8,152	10,601	12,289
Amortization of debt issuance costs	1,348	1,528	1,629
Amortization and accretion of discount and premium on investments			(15)
Loss on sales of investments			171
Accretion of interest on debt	4,168	3,371	3,376
Provision for (recovery of) bad debt, net	1,797	3,681	(73)
Provision for write-down of inventories	4,184	2,340	1,603
(Gain) loss on disposal of property and equipment	9	2,588	(8)
Loss on equity method investment	149
Elimination of equity method investment intra-entity profit on sales	1,847
Loss on extinguishment of debt			3,452
Gain on termination of lease obligation		(1,007)
Gain on contribution to joint venture	(12,964)
Provision (benefit) for deferred income taxes	353	(86)	30
Changes in assets and liabilities:
Accounts receivable, short and long-term	19,030	(46,165)	7,223
Inventories	(23,178)	(14,165)	(8,685)
Prepaid expenses and other assets	4,403	(13,049)	4,209
Deferred cost of revenue, short and long-term	(2,441)	531	2,422
Accounts payable	(6,770)	9,456	2,002
Operating lease liabilities, net	(235)
Accrued liabilities	(16,242)	10,857	1,577
Customer advances	2,159	(2,549)	6,189
Deferred revenues, short and long-term	1,747	8,366	(4,893)
Net cash provided by (used in) operating activities	(1,469)	(29,641)	18,331
Cash flows from investing activities
Purchases of property and equipment, net	(3,558)	(4,311)	(6,276)
Purchase of intangible assets	(170)		(333)
Purchases of investments			(5,940)
Sales and maturities of investments			30,315
Net cash provided by (used in) investing activities	(3,728)	(4,311)	17,766
Cash flows from financing activities
Proceeds from employee stock plans	2,450	3,927	4,389
Taxes paid related to net share settlement of equity awards	(207)		(293)
Payments made to note and loan holders			(69,797)
Proceeds from debt, net of costs	24,716	19,968	66,111
Borrowings (repayments) under Revolving Credit Facility, net	(263)	4,578	(27,863)
Net cash provided by (used in) financing activities	26,696	28,473	(27,453)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	234	124	(346)
Net increase (decrease) in cash, cash equivalents and restricted cash	21,733	(5,355)	8,298
Cash, cash equivalents and restricted cash at beginning of period	88,178	93,533	85,235
Cash, cash equivalents and restricted cash at end of period	109,911	88,178	93,533
Supplemental Disclosure of Cash Flow Information
Cash paid for income taxes	2,806	2,191	1,460
Cash paid for interest	12,332	9,761	9,187
Supplemental non-cash disclosure:
Non-cash effect of pension settlement accounting	178
Exchange of Convertible Notes			6,641
Modification of Revolving Credit Facility			1,997
Unpaid purchase of property and equipment at end of year	226	235	399
Transfers from inventory to property and equipment	2,594	$ 1,170	$ 174
An equity method investment, in exchange for non-cash contributions of assets to China Joint Venture (including gain of $12,964)	$ 15,925