Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
OPERATING ACTIVITIES
Net loss	$ (5,760)	$ (5,101)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	718	708
Stock-based compensation expense	177	506
Loss on disposal of property, plant and equipment	419	382
Provisions (recovery) for bad debt expense	618	(918)
Impairment (recovery) of assets held for sale	819	(65)
Provision (recovery) for deferred taxes	(392)	294
Customer forfeiture of deposit	(905)
Changes in operating assets and liabilities:
Accounts receivable	(1,938)	3,141
Inventories	(729)	910
Other current assets	857	2,694
Accounts payable	1,335	(415)
Accrued liabilities	(85)	(28)
Income taxes payable	7	(100)
Other	224	29
Total net cash (used in) provided by operating activities	(4,635)	2,037
INVESTING ACTIVITIES
Capital investments	(3,984)	(1,220)
Proceeds from sale of fixed assets	607	274
Net cash used in investing activities	(3,377)	(946)
FINANCING ACTIVITIES
Factoring arrangement	(62)	16
Net cash (used in) provided by financing activities	(62)	16
Effect of exchange rate changes on cash	214	13
Net (decrease) increase in cash and cash equivalents	(7,860)	1,120
Cash and cash equivalents, beginning of period	13,499	12,379
Cash and cash equivalents, end of period	5,639	13,499
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Income taxes
Interest expense paid to factoring arrangement	$ 22	$ 31