CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 153	$ 616
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	424	507
Gain on sale of assets	(60)	(4)
Equipment transferred to cost of goods sold	(26)	336
Share-based compensation	651	650
Net change in:
Trade accounts receivable	(63)	(1,650)
Inventories	(28)	(179)
Other current assets	3	175
Accounts payable and accrued liabilities	(2,223)	(1,667)
Deferred revenue	(62)	627
Other long-term liabilities	(312)	(34)
Deposits and other long-term assets	88	(175)
Net cash provided by (used in) operating activities	(1,455)	(798)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(365)	(495)
Net proceeds from sale of assets	60	4
Cash provided by (used in) investing activities	(305)	(491)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax	(222)	(420)
Repurchase of common stock	(1,220)	0
Cash provided by (used in) financing activities	(1,442)	(420)
Increase (decrease) in cash and cash equivalents	(3,202)	(1,709)
Effects of exchange rate changes on cash	24	(198)
Cash and cash equivalents at beginning of period	18,343	18,541
Cash and cash equivalents at end of period	15,165	16,634
Supplemental disclosure of cash flow information:
Cash paid during the period for: income taxes	$ 101	$ 111