CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net loss including noncontrolling interest	$ 8,767,000	$ (1,858,000)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	12,489,000	10,904,000
Share-based compensation expense	2,876,000	2,369,000
Deferred income taxes, net	17,000	(32,000)
Loss on disposal of property and equipment	47,000	36,000
Impairment of privately-held investment	0	0
Changes in assets and liabilities:
Accounts receivable, net	(13,044,000)	(15,033,000)
Inventories	(2,172,000)	(5,823,000)
Other current and long-term assets	(1,011,000)	3,756,000
Accounts payable	1,930,000	753,000
Income taxes payable	749,000	47,000
Accrued and other liabilities	(800,000)	3,654,000
Net cash provided by (used in) operating activities	9,848,000	(1,227,000)
Cash flows from investing activities
Purchases of property and equipment excluding JV Company	(7,944,000)	(8,292,000)
Purchases of property and equipment in JV Company	(3,393,000)	(7,506,000)
Net cash used in investing activities	(11,337,000)	(15,798,000)
Cash flows from financing activities
Withholding tax on restricted stock units	(412,000)	(96,000)
Proceeds from borrowings	11,300,000	2,790,000
Repayments of borrowings	(11,085,000)	(2,085,000)
Principal payments on finance leases	(3,989,000)	(1,691,000)
Net cash used in financing activities	(4,186,000)	(1,082,000)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1,997,000	(805,000)
Net decrease in cash, cash equivalents and restricted cash	(3,678,000)	(18,912,000)
Cash, cash equivalents and restricted cash at beginning of period	162,704,000	124,295,000
Cash, cash equivalents and restricted cash at end of period	159,026,000	105,383,000
Supplemental disclosures of non-cash investing and financing information:
Property and equipment purchased but not yet paid	$ 6,877,000	$ 8,334,000