Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flow from Operating Activities
Net income	$ 207	$ 978
Adjustments to reconcile net income to net cash flow provided by operating activities
Depreciation and amortization	1,471	882
Addition / (reversal) of provision for obsolete inventories	7	(38)
Stock option expense	60	32
Bad debt recovery	(5)	(17)
Accrued interest expense, net accrued interest income	(49)	43
Payment of interest portion of finance lease	(2)	(3)
Loss / (gain) on sale of property, plant and equipment - continuing operations	91	(15)
Warranty recovery, net	7	2
Reversal of income tax provision	(1)	0
Deferred tax (benefits) / expense	(56)	20
Repayment of Operating lease	(346)	(380)
Changes in operating assets and liabilities, net of acquisition effects
Trade accounts receivable	(1,158)	(886)
Other receivables	(732)	56
Other assets	(47)	11
Inventories	(1,914)	(1,341)
Prepaid expenses and other current assets	36	537
Accounts payable and accrued expenses	2,861	1,469
Other non-current liabilities	(367)	0
Income taxes payable	(120)	211
Net Cash (Used in) / Provided by Operating Activities	(57)	1,561
Cash Flow from Investing Activities
Withdrawal from unrestricted term deposits, net	693	2,486
Additions to property, plant and equipment	(77)	(1,156)
Proceeds from disposal of assets held-for-sale	198	0
Net Cash Provided by Investing Activities	814	1,330
Cash Flow from Financing Activities
Payment on lines of credit	(270)	(938)
Payment of bank loans	(116)	(117)
Payment of finance leases	(26)	(36)
Proceeds from exercising stock options	0	19
Proceeds from lines of credit	556	483
Proceeds from bank loans	0	175
Net Cash Provided by /(Used in) Financing Activities	144	(414)
Effect of Changes in Exchange Rate	(150)	(793)
Net Increase in Cash, Cash Equivalents, and Restricted Cash	751	1,684
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	10,038	9,376
Cash, Cash Equivalents, and Restricted Cash at End of Period	10,789	11,060
Supplementary Information of Cash Flows
Interest	20	43
Income taxes	141	1
Cash	8,333	9,428
Restricted term deposits	737	698
Restricted Term-Deposits in Non-Current Assets	1,719	934
Total Cash, Cash Equivalents, and Restricted Cash Shown in Statements of Cash Flows	$ 10,789	$ 11,060