CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (1,611)	$ 153
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	446	424
Gain on sale of assets	0	(60)
Equipment transferred to cost of goods sold	52	(26)
Share-based compensation	730	651
Net change in:
Trade accounts receivable	1,262	(63)
Inventories	273	(28)
Other current assets	(1,076)	3
Accounts payable and accrued liabilities	(541)	(2,223)
Deferred revenue	(77)	(62)
Other long-term liabilities	(264)	(312)
Deposits and other long-term assets	912	88
Net cash provided by (used in) operating activities	106	(1,455)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(432)	(365)
Net proceeds from sale of assets	0	60
Cash provided by (used in) investing activities	(432)	(305)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax	(159)	(222)
Repurchase of common stock	0	(1,220)
Cash provided by (used in) financing activities	(159)	(1,442)
Increase (decrease) in cash and cash equivalents	(485)	(3,202)
Effects of exchange rate changes on cash	(178)	24
Cash and cash equivalents at beginning of period	13,936	18,343
Cash and cash equivalents at end of period	13,273	15,165
Supplemental disclosure of cash flow information:
Cash paid during the period for: income taxes	$ 69	$ 101