Consolidated Statements of Cash Flows $ in Thousands, ¥ in Millions	12 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
Cash Flow from Operating Activities
Net income / (loss)	$ 2,299	$ (1,155)
Adjustments to reconcile net income to net cash flow provided by operating activities
Depreciation and amortization	3,075	3,059
Impairment on other assets	(0)	1,580
Stock option expense	475	249
Reversal of obsolete inventories	4	(15)
Payment of interest portion of finance leases	(21)	(40)
Bad debt recovery	(58)	(9)
Accrued interest expense, net accrued (interest income)	78	29
PPP loan forgiveness income	0	(121)
Dividend income	(10)	(32)
Dividend received	(10)	(32)
Gain / (loss) on sale of property, plant and equipment	76	(1)
Warranty addition, net	0	3
Reversal of income tax provision	(7)	0
Deferred tax expense / (benefit)	40	(139)
Changes in operating assets and liabilities, net of acquisition effects
Trade account receivables	(3,246)	(2,347)
Other receivables	(336)	336
Other assets	118	(327)
Inventories	(252)	(98)
Prepaid expense and other current assets	(826)	(97)
Accounts payable and accrued expense	1,532	1,377
Income taxes payable	323	118
Operating leases liabilities	(1,151)	(764)
Net Cash Provided by Operating Activities	2,123	1,638
Cash Flow from Investing Activities
Withdrawal of unrestricted deposit	3,103	2,335
Investments in restricted and unrestricted deposits	(2,079)	(1,790)
Addition to property, plant and equipment	(1,468)	(1,112)
Net Cash Used in Investing Activities	(444)	(567)
Cash Flow from Financing Activities
Payment on lines of credit	(1,543)	(589)
Payment of bank loans	(451)	(412)
Payment of principal portion of finance leases	(193)	(253)
Dividends paid on noncontrolling interest	(125)	(189)
Proceeds from exercising stock options	572	754
Proceeds from bank loans	248	205
Proceeds from lines of credit	2,403	482
Net Cash Provided / (Used) in Financing Activities	911	(2)
Effect of Changes in Exchange Rate	(791)	698
Net Increase in Cash, Cash Equivalents, and Restricted Cash	1,799	1,767
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	7,577	5,810
Cash, Cash Equivalents, and Restricted Cash at End of Period	9,376	7,577
Supplementary Information of Cash Flows
Interest	121	122
Income taxes	403	207
Cash	7,698	5,836
Restricted Term Deposits	1,678	1,741
Total Cash, Cash Equivalents, and Restricted Cash Shown in Statement of Cash Flows	$ 9,376	$ 7,577