CONSOLIDATED STATEMENT OF CASH FLOWS (in thousands) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (1,187)	$ 1,606
Adjustments to reconcile income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	867	955
Gain on sale of assets	(64)	(19)
Equipment transferred to cost of goods sold	63	423
Share-based compensation	1,171	1,230
Net change in:
Trade accounts receivable	(375)	(78)
Inventories	139	(1,135)
Other current assets	(307)	72
Accounts payable and accrued liabilities	(2,031)	(397)
Deferred revenue	(98)	(288)
Other long-term liabilities	(29)	(82)
Deposits and other long-term assets	(245)	(175)
Net cash provided by (used in) operating activities	(2,096)	2,112
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(612)	(907)
Net proceeds from sale of assets	64	19
Cash provided by (used in) investing activities	(548)	(888)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax	(213)	(966)
Repurchase of common stock	(1,464)	0
Cash provided by (used in) financing activities	(1,677)	(966)
Increase (decrease) in cash and cash equivalents	(4,321)	258
Effects of exchange rate changes on cash	(86)	(456)
Cash and cash equivalents at beginning of period	18,343	18,541
Cash and cash equivalents at end of period	13,936	18,343
Supplemental disclosure of non-cash financing activities:
Cash paid during the period for: Income taxes	$ 307	$ 463