Consolidated Statements of Cash Flows $ in Thousands, ¥ in Millions	12 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)
Cash Flow from Operating Activities
Net income	$ 1,142	$ 1,758
Adjustments to reconcile net income to net cash flow provided by operating activities
Depreciation and amortization	4,234	5,088
Loss on sale and write-off of property, plant and equipment	46	7
Stock compensation	465	358
Addition of provision for obsolete inventories	65	61
Reversal of obsolete inventories	(21)	(40)
Payment of interest portion of finance lease	(6)	(10)
Bad debt recovery, net of allowance charged	(5)	(11)
Accrued interest income, net accrued interest expense	(72)	(12)
(Addition) / Reversal of income tax provision	(7)	93
Assurance warranty recovery, net	0	5
Deferred tax (benefit) / expenses	(22)	106
Repayment of operating lease	(1,415)	(1,300)
Changes in operating assets and liabilities, net of acquisition effects
Trade accounts receivable	(838)	1,812
Other receivables	398	59
Other assets	(51)	(10)
Inventories	(1,046)	230
Prepaid expenses and other current assets	159	511
Accounts payable and accrued expenses	798	(1,098)
Contract liabilities	(523)	287
Income taxes payable	(176)	(350)
Other non-current liabilities	(567)	566
Net Cash Provided by Operating Activities	2,558	8,110
Cash Flow from Investing Activities
Withdrawal from unrestricted term deposits	4,796	5,140
Investment in unrestricted term deposits	(4,627)	(6,794)
Proceeds from disposal of assets for sale	200	0
Proceeds from disposal of property, plant and equipment	60	78
Additions to property, plant and equipment	(542)	(4,498)
Net Cash Used in Investing Activities	(113)	(6,074)
Cash Flow from Financing Activities
Payment on lines of credit	(961)	(1,502)
Payment of bank loans	(475)	(480)
Payment of principal portion of finance leases	(112)	(120)
Proceeds from exercising stock options	506	69
Proceeds from lines of credit	952	580
Proceeds from bank loans	0	210
Net Cash Used in Financing Activities	(90)	(1,243)
Effect of Changes in Exchange Rate	163	(131)
Net Increase in Cash, Cash Equivalents, and Restricted Cash	2,518	662
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	10,038	9,376
Cash, Cash Equivalents, and Restricted Cash at End of Period	12,556	10,038
Supplementary Information of Cash Flows
Interest	75	104
Income taxes	425	558
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]
Cash	10,035	7,583
Restricted Term-Deposits in Current Assets	750	739
Restricted Term-Deposits in Non-Current Assets	1,771	1,716
Total Cash, Cash Equivalents, and Restricted Cash Shown in Statements of Cash Flows	$ 12,556	$ 10,038