CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net (loss) income	$ (4,067,000)	$ 323,000
Adjustment to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	378,000	439,000
Amortization of right of use assets	395,000	397,000
Gain on forgiveness of PPP loan		(824,000)
Amortization of deferred financing fees and debt discount		52,000
Loss (gain) on foreign currency remeasurement	60,000	(191,000)
Issuance of common stock for compensation	26,000
Amortization of stock options	38,000	114,000
Allowance for credit losses	(90,000)	(113,000)
Changes in operating assets and liabilities:
Accounts receivable	1,391,000	(570,000)
Inventories	350,000	(1,851,000)
Prepaids and other assets	923,000	479,000
Accounts payable	2,081,000	1,091,000
Accrued liabilities	1,068,000	(7,000)
Operating lease liabilities	(410,000)	(397,000)
Customer deposits	(970,000)	(768,000)
Deferred pension liability and other	(551,000)	(142,000)
Net cash provided by (used in) operating activities	622,000	(1,968,000)
Cash flows from investing activities
Purchases of property, plant and equipment	(327,000)	(18,000)
Net cash used in investing activities	(327,000)	(18,000)
Cash flows from financing activities
Proceeds from long-term debt	243,000	1,057,000
Proceeds from forgiveness of PPP loan		453,000
Payments of long-term debt	(201,000)
Net cash provided by financing activities	42,000	1,510,000
Effect of exchange rate changes
Net increase (decrease) in cash, cash equivalents and restricted cash	337,000	(476,000)
Cash, cash equivalents and restricted cash at beginning of year	48,000	524,000
Cash, cash equivalents and restricted cash at end of period	385,000	48,000
Supplemental disclosure of cash flow information:
Interest paid	24,000
Income taxes paid	10,000	10,000
Supplemental non-cash financing activities:
Lease assets added in exchange for lease liabilities	1,601,000
Current assets
Cash and cash equivalents	185,000	48,000
Long-term assets
Restricted cash	200,000
Cash, cash equivalents and restricted cash at end of period	$ 385,000	$ 48,000