CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net loss	$ (4,694)	$ (2,849)
Adjustment to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	952	1,301
Amortization of gain on sale/leaseback transaction	(11)	(132)
Amortization of deferred financing fees and debt discount	238	93
(Gain) loss on foreign currency remeasurement	(225)	178
Issuance of common stock for compensation	10	338
Bad debt expense	1,550	196
Changes in operating assets and liabilities:
Accounts receivable, net	(300)	(600)
Inventories	(37)	(271)
Prepaids and other assets	1,206	(1,271)
Accounts payable	950	1,285
Accrued liabilities	615	127
Customer deposits	(703)	901
Deferred pension liability and other	(619)	(106)
Net cash used in operating activities	(1,068)	(810)
Cash flows from investing activities
Purchases of property, plant and equipment and rental equipment	(140)	(222)
Net cash used in investing activities	(140)	(222)
Cash flows from financing activities
Proceeds from long-term debt	1,000	3,667
Proceeds from long-term debt - related parties		500
Issuance of common stock	1,500
Payments of long-term debt	(1,483)	(2,182)
Payments of dividends on preferred stock	(99)	(198)
Payments for deferred financing fees		(69)
Net cash provided by financing activities	918	1,718
Effect of exchange rate changes	4	5
Net (decrease) increase in cash, cash equivalents and restricted cash	(286)	691
Cash, cash equivalents and restricted cash at beginning of year	1,909	1,218
Cash, cash equivalents and restricted cash at end of period	1,623	1,909
Supplemental disclosure of cash flow information:
Interest paid	555	536
Income taxes paid	26	23
Supplemental non-cash financing activities:
Warrants issued to SMI and SMII	288
Warrants issued to Unilumin	964
Current assets
Cash and cash equivalents	723	747
Long-term assets
Restricted cash	900	1,162
Cash, cash equivalents and restricted cash at end of period	$ 1,623	$ 1,909