CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities
Net loss	$ (1,043,000)	$ (523,000)
Adjustment to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	148,000	160,000
Amortization of right of use assets	79,000	90,000
Amortization of deferred financing fees and debt discount	22,000	63,000
Loss on disposal of assets	5,000
Gain on extinguishment of debt		(52,000)
(Gain) loss on foreign currency remeasurement	(202,000)	57,000
Bad debt expense (benefit)	95,000	(51,000)
Changes in operating assets and liabilities:
Accounts receivable, net	366,000	(106,000)
Inventories	(78,000)	139,000
Prepaids and other assets	(43,000)	(102,000)
Accounts payable	375,000	(531,000)
Accrued liabilities	(280,000)	441,000
Operating lease liabilities	(78,000)	(88,000)
Customer deposits	1,000	(186,000)
Deferred pension liability and other	(121,000)	(114,000)
Net cash used in operating activities	(754,000)	(803,000)
Cash flows from investing activities
Equipment manufactured for rental	(7,000)
Purchases of property, plant and equipment	(172,000)	(2,000)
Net cash used in investing activities	(179,000)	(2,000)
Cash flows from financing activities
Proceeds from long-term debt	977,000
Proceeds from warrant exercise, net of costs		2,000,000
Payments of long-term debt		(1,489,000)
Payments for fees on extinguishment of debt		3,000
Net cash provided by financing activities	977,000	514,000
Effect of exchange rate changes	1,000	(1,000)
Net increase (decrease) in cash, cash equivalents and restricted cash	45,000	(292,000)
Cash, cash equivalents and restricted cash at beginning of year	1,385,000	1,623,000
Cash, cash equivalents and restricted cash at end of period	1,430,000	1,331,000
Supplemental disclosure of cash flow information:
Interest paid	53,000	130,000
Income taxes paid	15,000	22,000
Supplemental non-cash financing activities:
Preferred Stock Series B converted to Common Stock		3,172,000
Current assets
Cash and cash equivalents	580,000	431,000
Long-term assets
Restricted cash	850,000	900,000
Cash, cash equivalents and restricted cash at end of period	$ 1,430,000	$ 1,331,000