CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net income (loss)	$ 493,000	$ (621,000)
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	110,000	127,000
Amortization of right of use assets	97,000	72,000
Gain on forgiveness of PPP loan	(824,000)
Amortization of deferred financing fees and debt discount	32,000	32,000
Gain on extinguishment of debt		(77,000)
Loss on foreign currency remeasurement	16,000	36,000
Bad debt expense	56,000	42,000
Changes in operating assets and liabilities:
Accounts receivable	(309,000)	(438,000)
Inventories	(740,000)	105,000
Prepaids and other assets	(451,000)	87,000
Accounts payable	(365,000)	1,059,000
Accrued liabilities	78,000	364,000
Operating lease liabilities	(87,000)	(73,000)
Customer deposits	1,128,000	(355,000)
Deferred pension liability and other	(62,000)	(122,000)
Net cash (used in) provided by operating activities	(828,000)	238,000
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	90,000
Payments of long-term debt		(20,000)
Net cash provided by financing activities	703,000	70,000
Effect of exchange rate changes	(4,000)
Net (decrease) increase in cash and cash equivalents	(141,000)	308,000
Cash and cash equivalents at beginning of year	524,000	43,000
Cash and cash equivalents at end of period	383,000	351,000
Interest paid		38,000
Income taxes paid	$ 10,000	$ 9,000