Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net loss	$ (5,919)	$ (1,349)
Income from discontinued operations, net of taxes	0	(1,076)
Loss from continuing operations	(5,919)	(2,425)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	1,015	1,045
Share-based compensation expense	697	442
Provision for doubtful accounts	(17)	21
Deferred income taxes	0	269
Gain on disposition of property and equipment	0	(2)
Changes in operating assets and liabilities:
Accounts and other receivables	(1,073)	(1,683)
Inventories	1,872	1,199
Other assets	371	1,199
Accounts payable	207	419
Accrued liabilities	(339)	88
Income tax payable	20	(173)
Deferred revenue	(879)	(224)
Other current liabilities	170	(533)
Cash used in operating activities - continuing operations	(3,875)	(358)
Cash provided by operating activities - discontinued operations	0	2,149
Net cash (used in) provided by operating activities	(3,875)	1,791
Cash flows from investing activities:
Purchases of property and equipment	(435)	(706)
Proceeds from sale of Tecnonet	4,789	0
Proceeds from sale of property and equipment	0	9
Release of restricted time deposits	22	41
Cash provided by (used in) Investing activities - continuing operations	4,376	(656)
Cash used in Investing activities - discontinued operations	0	(62)
Net cash provided by (used in) investing activities	4,376	(718)
Cash flows from financing activities:
Proceeds from exercise of stock options	4	78
Purchase of treasury shares	(1,871)	(4,551)
Cash used in Financing activities - continuing operations	(1,867)	(4,473)
Cash used in Financing activities - discontinued operations	0	(4,967)
Net cash used in financing activities	(1,867)	(9,440)
Effect of exchange rate changes on cash and cash equivalents	7	(538)
Net decrease in cash and cash equivalents	(1,359)	(8,905)
Cash and cash equivalents, beginning of period	26,169	22,422
Cash and cash equivalents, end of period	24,810	13,517
Less: cash and cash equivalents of discontinued operations, end of period	0	2,861
Cash and cash equivalents, end of period	24,810	10,656
Supplemental disclosure of cash flow information:
Cash paid during period for interest	0	62
Cash paid during period for income taxes	$ 104	$ 0