CONSOLIDATED STATEMENT OF CASH FLOWS (in thousands) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,606	$ 5,449
Adjustments to reconcile income to net cash provided by (used in) operating activities:
Depreciation and amortization	955	822
Gain on sale of assets	(19)	(366)
Equipment transferred to cost of goods sold	423	749
Share-based compensation	1,230	714
Net change in:
Trade accounts receivable	(78)	1,215
Inventories	(1,135)	59
Other current assets	72	(198)
Accounts payable and accrued liabilities	(397)	1,520
Deferred revenue	(288)	(247)
Other long-term liabilities	(82)	(11)
Deposits and other long-term assets	(175)	(580)
Net cash provided by (used in) operating activities	2,112	9,126
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(907)	(2,154)
Proceeds from sale of assets	19	366
Cash provided by (used in) investing activities	(888)	(1,788)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax	(966)	(939)
Cash provided by (used in) financing activities	(966)	(939)
Increase (decrease) in cash and cash equivalents	258	6,399
Effects of exchange rate changes on cash	(456)	571
Cash and cash equivalents at beginning of period	18,541	11,571
Cash and cash equivalents at end of period	18,343	18,541
Supplemental disclosure of non-cash financing activities:
Cash paid during the period for: Income taxes	$ 463	$ 127