Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Cash flows from operating activities:
Net loss	$ (7,179)	$ (12,155)	$ (6,822)
(Income) loss from discontinued operations, net of taxes	371	(2,383)	(2,536)
Loss from continuing operations	(6,808)	(14,538)	(9,358)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	2,062	2,051	1,614
Share-based compensation expense	1,119	932	667
Provision for doubtful accounts	40	42	580
Deferred income taxes	2,669	1,804	(61)
Loss on disposition of property and equipment	(1)	11	26
Gain on sale of Tecnonet	(189)	0	0
Changes in operating assets and liabilities:
Accounts and other receivables	2,649	186	(4,780)
Inventories	127	2,878	(2,656)
Other assets	2,002	(221)	4,514
Accounts payable	(1,420)	(1,035)	1,498
Accrued liabilities	(761)	(1,672)	613
Income tax payable	(39)	38	(43)
Deferred revenue	(745)	1,662	1,832
Other current liabilities	(540)	(80)	(443)
Cash provided by (used in) operating activities - continuing operations	165	(7,942)	(5,997)
Cash provided by operating activities - discontinued operations	8,438	3,806	2,009
Net cash provided by (used in) operating activities	8,603	(4,136)	(3,988)
Cash flows from investing activities:
Purchases of property and equipment	(1,375)	(1,314)	(3,558)
Purchases of intangible assets	0	(650)	(473)
Change in restricted time deposits	(4,955)	13	(9)
Proceeds from sale of property and equipment	9	0	0
Proceeds from sale of Tecnonet, net of cash divested and transaction costs	8,688	0	0
Cash provided by (used in) investing activities - continuing operations	2,367	(1,951)	(4,040)
Cash used in investing activities - discontinued operations	(81)	(177)	(104)
Net cash provided by (used in) investing activities	2,286	(2,128)	(4,144)
Cash flows from financing activities:
Payments for shares repurchased for tax withholdings on vesting of restricted stock awards	190	72	0
Payments for shares repurchased for tax withholdings on vesting of restricted stock awards	(50)	(87)	0
Purchase of treasury shares	(4,943)	0	(3,884)
Cash used in financing activities - continuing operations	(4,803)	(15)	(3,884)
Cash provided by (used in) financing activities - discontinued operations	(1,649)	1,795	(1,128)
Net cash provided by (used in) financing activities	(6,452)	1,780	(5,012)
Effect of exchange rate changes on cash and cash equivalents	(690)	(685)	126
Net increase (decrease) in cash and cash equivalents	3,747	(5,169)	(13,018)
Cash and cash equivalents, beginning of year	22,422	27,591	40,609
Cash and cash equivalents, end of year	26,169	22,422	27,591
Less cash and equivalents of discontinued operations, end of year	0	6,280	1,563
Cash and cash equivalents, end of year	26,169	16,142	26,028
Supplemental disclosure of cash flow information:
Cash paid during year for interest	125	283	291
Cash paid during year for income taxes — Total	$ 1,825	$ 1,791	$ 1,800