CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net (loss) income	$ (858,000)	$ 493,000
Adjustment to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	92,000	110,000
Amortization of right of use assets	105,000	97,000
Gain on forgiveness of PPP loan		(824,000)
Amortization of deferred financing fees and debt discount		32,000
Loss on foreign currency remeasurement	8,000	16,000
Amortization of stock options	38,000
Allowance for credit losses	112,000	56,000
Changes in operating assets and liabilities:
Accounts receivable	(263,000)	(309,000)
Inventories	508,000	(740,000)
Prepaids and other assets	21,000	(451,000)
Accounts payable	423,000	(365,000)
Accrued liabilities	57,000	78,000
Operating lease liabilities	(109,000)	(87,000)
Customer deposits	(194,000)	1,128,000
Deferred pension liability and other	61,000	(62,000)
Net cash provided by (used in) operating activities	1,000	(828,000)
Cash flows from investing activities
Purchases of property, plant and equipment		(12,000)
Net cash used in investing activities		(12,000)
Cash flows from financing activities
Proceeds from long-term debt		703,000
Net cash provided by financing activities		703,000
Effect of exchange rate changes	1,000	(4,000)
Net increase (decrease) in cash and cash equivalents	2,000	(141,000)
Cash and cash equivalents at beginning of year	48,000	524,000
Cash and cash equivalents at end of period	50,000	383,000
Supplemental disclosure of cash flow information:
Interest paid
Income taxes paid	$ 10,000	$ 10,000