CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net loss	$ (888,000)	$ (968,000)
Adjustment to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	320,000	497,000
Amortization of right of use assets	182,000
Amortization of gain on sale/leaseback transaction		(11,000)
Amortization of deferred financing fees and debt discount	71,000	81,000
Loss on extinguishment of debt	193,000
Loss (gain) on foreign currency remeasurement	107,000	(122,000)
Bad debt expense	162,000	222,000
Changes in operating assets and liabilities:
Accounts receivable, net	(445,000)	205,000
Inventories	(332,000)	26,000
Prepaids and other assets	(370,000)	770,000
Accounts payable	(2,975,000)	93,000
Accrued liabilities	(481,000)	161,000
Operating lease liabilities	(179,000)
Customer deposits	378,000	(567,000)
Deferred pension liability and other	417,000	(63,000)
Net cash (used in) provided by operating activities	(3,840,000)	324,000
Cash flows from investing activities
Purchases of rental equipment and property, plant and equipment	(25,000)	(133,000)
Net cash used in investing activities	(25,000)	(133,000)
Cash flows from financing activities
Proceeds from long-term debt		1,000,000
Proceeds from warrant exercise, net of costs	5,298,000
Proceeds from rights offering, net of costs	2,428,000
Payments of long-term debt	(3,037,000)	(1,885,000)
Payments of dividends on preferred stock	(73,000)
Payments for fees on extinguishment of debt	(62,000)
Net cash provided by (used in) financing activities	4,554,000	(885,000)
Effect of exchange rate changes	1,000	(1,000)
Net increase (decrease) in cash, cash equivalents and restricted cash	690,000	(695,000)
Cash, cash equivalents and restricted cash at beginning of year	1,623,000	1,909,000
Cash, cash equivalents and restricted cash at end of period	2,313,000	1,214,000
Supplemental disclosure of cash flow information:
Interest paid	267,000	293,000
Income taxes paid	22,000	26,000
Supplemental non-cash financing activities:
Preferred Stock Series B converted to Common Stock	3,172,000
Warrants issued to SMI and SMII		287,000
Current assets
Cash and cash equivalents	1,413,000	264,000
Long-term assets
Restricted cash	900,000	950,000
Cash, cash equivalents and restricted cash at end of period	$ 2,313,000	$ 1,214,000