Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ (9,032)	$ (463)
Income from discontinued operations, net of taxes	0	(1,814)
Loss from continuing operations	(9,032)	(2,277)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	1,451	1,547
Share-based compensation expense	1,106	758
Provision for doubtful accounts	(25)	(9)
Deferred income taxes	0	174
Loss (gain) on disposition of property and equipment	69	(2)
Changes in operating assets and liabilities:
Accounts and other receivables	(508)	(142)
Inventories	170	692
Other assets	(1,139)	2,018
Accounts payable	2,720	34
Accrued liabilities	(486)	390
Income tax payable	79	(308)
Deferred revenue	(1,182)	(25)
Other current liabilities	(202)	(584)
Cash (used in) provided by operating activities - continuing operations	(6,979)	2,266
Cash provided by operating activities - discontinued operations	0	3,834
Net cash (used in) provided by operating activities	(6,979)	6,100
Cash flows from investing activities:
Purchases of property and equipment	(681)	(1,162)
Proceeds from sale of Tecnonet	4,789	0
Proceeds from sale of property and equipment	2	9
(Increase) release of restricted time deposits	(87)	45
Cash provided by (used in) Investing activities - continuing operations	4,023	(1,108)
Cash used in Investing activities - discontinued operations	0	(74)
Net cash provided by (used in) investing activities	4,023	(1,182)
Cash flows from financing activities:
Proceeds from exercise of stock options	73	146
Purchase of treasury shares	(2,375)	(4,944)
Cash used in Financing activities - continuing operations	(2,302)	(4,798)
Cash used in Financing activities - discontinued operations	0	(2,111)
Net cash used in financing activities	(2,302)	(6,909)
Effect of exchange rate changes on cash and cash equivalents	11	(518)
Net decrease in cash and cash equivalents	(5,247)	(2,509)
Cash and cash equivalents, beginning of period	26,169	22,422
Cash and cash equivalents, end of period	20,922	19,913
Less: cash and cash equivalents of discontinued operations, end of period	0	5,800
Cash and cash equivalents, end of period	20,922	14,113
Supplemental disclosure of cash flow information:
Cash paid during period for interest	0	102
Cash paid during period for income taxes	$ 111	$ 765