CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 130	$ 979
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	230	164
Gain on sale of assets	0	(211)
Equipment transferred to cost of goods sold	146	116
Share-based compensation	177	97
Net change in:
Trade accounts receivable	(620)	(547)
Inventories	272	(331)
Other current assets	110	(55)
Accounts payable and accrued liabilities	(1,925)	(503)
Deferred revenue	(139)	(522)
Other long-term liabilities	(12)	(17)
Deposits and other long-term assets	0	0
Net cash provided by (used in) operating activities	(1,631)	(830)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(338)	(403)
Net proceeds from sale of assets	0	211
Cash provided by (used in) investing activities	(338)	(192)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax	(5)	(95)
Repurchase of common stock	0	0
Cash provided by (used in) financing activities	(5)	(95)
Increase/(decrease) in cash and cash equivalents	(1,974)	(1,117)
Effects of exchange rate changes on cash	249	59
Cash and cash equivalents at beginning of period	18,541	11,571
Cash and cash equivalents at end of period	16,816	10,513
Supplemental disclosure of cash flow information:
Cash paid during the period for: Income Taxes	$ 90	$ 30