Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net income	$ 4,781	$ 3,979
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	4,892	5,581
Share-based compensation	7,097	5,865
Amortization of debt issuance costs	1,086	1,005
Accretion of interest on debt	3,757	3,090
Bad debt expense	78	1,169
Non-cash revenue transactions related to joint venture contribution	(1,365)
Gain on contribution to joint venture		(12,964)
Provision for write-down of inventories	4,553	2,877
Loss on disposal of property and equipment	62	9
Income on equity method investment	(1,021)	(222)
Release (deferral) of equity method investment intra-entity profit on sales	(185)	1,129
Changes in assets and liabilities:
Accounts receivable	22,202	7,519
Inventories	(7,007)	(23,844)
Prepaid expenses and other assets	618	2,682
Deferred cost of revenue	1,272	81
Accounts payable	(5,028)	(3,366)
Operating lease liabilities, net	(473)	(461)
Accrued liabilities	693	(16,716)
Customer advances	710	(2,299)
Deferred revenues	(4,405)	4,598
Net cash provided by (used in) operating activities	32,317	(20,288)
Cash flows from investing activities
Purchases of property and equipment	(1,427)	(2,764)
Purchase of intangible asset		(170)
Additional investments in joint venture	(79)
Net cash used in investing activities	(1,506)	(2,934)
Cash flows from financing activities
Proceeds from employee stock plans	1,042	1,359
Proceeds from exercise of options	855
Taxes paid related to net share settlement of equity awards	(343)	(207)
Proceeds from debt, net of costs		24,716
Paydown on term loan	(10,000)
Loan amendment cost	(500)
Borrowings (repayments) under Revolving Credit Facility, net	(447)	2,458
Net cash (used in) provided by financing activities	(9,393)	28,326
Effect of exchange rate changes on cash, cash equivalents and restricted cash	127	(675)
Net increase in cash, cash equivalents and restricted cash	21,545	4,429
Cash, cash equivalents and restricted cash at beginning of period	109,911	88,178
Cash, cash equivalents and restricted cash at end of period	131,456	92,607
Supplemental disclosures of cash flow information:
Write-off of previously reserved accounts receivable	$ 3,617
An equity method investment, in exchange for non-cash contributions of assets to the China joint venture (including gain of $12,964)		$ 15,925