Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flow from Operating Activities
Net (loss) / income	$ 1,580	$ (49)
Adjustments to reconcile net income to net cash flow provided by operating activities
Depreciation and amortization	2,263	2,224
Stock compensation	459	144
Addition / (reversal) of provision for obsolete inventories	25	(2)
Bad debt recovery, net of allowance charged	(61)	(15)
Accrued interest expense, net (accrued interest income)	85	(18)
Payment of interest portion of finance lease	(20)	(32)
Gain on sale of property, plant and equipment	0	(1)
Dividend income	0	(32)
Dividend received	0	(32)
Reversal of income tax provision	(18)	0
Deferred tax benefit	(7)	(70)
Changes in operating assets and liabilities, net of acquisition effects
Trade accounts receivable	(2,214)	(1,013)
Other receivables	(688)	320
Other assets	134	(33)
Inventories	(233)	(624)
Prepaid expenses and other current assets	(312)	(76)
Accounts payable and accrued expenses	242	754
Income taxes payable	145	(44)
Operating lease liabilities	(801)	(565)
Net Cash Provided by Operating Activities	579	900
Cash Flow from Investing Activities
Withdrawal of unrestricted deposit	3,761	1,166
Investment in unrestricted term deposits, net	(2,079)	(1,370)
Additions to property, plant and equipment	(1,144)	(621)
Net Cash Provided by/ (Used in) Investing Activities	538	(825)
Cash Flow from Financing Activities
Payment on lines of credit	(1,025)	(174)
Payment of bank loans	(322)	(296)
Payment of principal portion of finance leases	(168)	(192)
Dividends paid to noncontrolling interest	(122)	(189)
Proceeds from bank loan	255	189
Proceeds from exercise stock options	429	754
Proceeds from lines of credit	1,463	187
Net Cash Provided by Financing Activities	510	279
Effect of Changes in Exchange Rate	9	753
Net Increase in Cash, Cash Equivalents, and Restricted Cash	1,636	1,107
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	7,577	5,810
Cash, Cash Equivalents, and Restricted Cash at end of Period	9,213	6,917
Supplementary Information of Cash Flows
Interest	84	69
Income taxes	342	203
Cash	7,478	5,178
Restricted Term-Deposits in Noncurrent Assets	1,735	1,739
Total Cash, Cash Equivalents, and Restricted Cash Shown in the Statements of Cash Flows	$ 9,213	$ 6,917