CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net loss	$ (621,000)	$ (1,043,000)
Adjustment to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	127,000	148,000
Amortization of right of use assets	72,000	79,000
Amortization of deferred financing fees and debt discount	32,000	22,000
Loss on disposal of assets		5,000
Gain on extinguishment of debt	(77,000)
Loss (gain) on foreign currency remeasurement	36,000	(202,000)
Bad debt expense	42,000	95,000
Changes in operating assets and liabilities:
Accounts receivable, net	(438,000)	366,000
Inventories	105,000	(78,000)
Prepaids and other assets	87,000	(43,000)
Accounts payable	1,059,000	375,000
Accrued liabilities	364,000	(280,000)
Operating lease liabilities	(73,000)	(78,000)
Customer deposits	(355,000)	1,000
Deferred pension liability and other	(122,000)	(121,000)
Net cash provided by (used in) operating activities	238,000	(754,000)
Cash flows from investing activities
Equipment manufactured for rental		(7,000)
Purchases of property, plant and equipment		(172,000)
Net cash used in investing activities		(179,000)
Cash flows from financing activities
Proceeds from long-term debt	90,000	977,000
Payments of long-term debt	(20,000)
Net cash provided by financing activities	70,000	977,000
Effect of exchange rate changes		1,000
Net increase in cash, cash equivalents and restricted cash	308,000	45,000
Cash, cash equivalents and restricted cash at beginning of year	43,000	1,385,000
Cash, cash equivalents and restricted cash at end of period	351,000	1,430,000
Supplemental disclosure of cash flow information:
Interest paid	38,000	53,000
Income taxes paid	9,000	15,000
Current assets
Cash and cash equivalents	351,000	580,000
Long-term assets
Restricted cash		850,000
Cash, cash equivalents and restricted cash at end of period	$ 351,000	$ 1,430,000