Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net income from continuing operations	$ 24,251	$ 10,806	$ 11,862
Adjustments to reconcile net income from continuing operations to net cash provided by continuing operations:
Depreciation and amortization	3,809	2,458	3,343
Deferred tax expense (benefit)	(4,332)	118	(38)
Stock-based compensation	6,117	1,021	(309)
Changes in assets and liabilities:
Accounts receivable, net	(10,315)	6,700	(4,951)
Inventories	(5,323)	(1,695)	4,363
Foreign sales tax receivable	1,600	(1,155)	6,375
Other current assets	186	(229)	5
Accounts payable	(1,569)	4,465	(5,864)
Income taxes payable	(113)	(744)	(91)
Accrued expenses	1,438	41	(951)
Deferred compensation	0	0	(1,434)
Deferred revenue	2,169	(703)	518
Net cash provided by operating activities of continuing operations	17,918	21,083	12,828
Cash flows from investing activities of continuing operations:
Purchase of Alfa & Ariss	(1,301)	0	0
Additions to property and equipment	(1,132)	(1,417)	(2,169)
Additions to intangible assets	(7,287)	(289)	(317)
Other assets	(64)	(66)	(242)
Net cash used in investing activities of continuing operations	(9,784)	(1,772)	(2,728)
Cash flows from financing activities of continuing operations:
Proceeds from exercise of stock options	153	3	119
Net cash provided by financing activities of continuing operations	153	3	119
Cash flows used in discontinued operations:
Net cash used in operating activities of discontinued operations	(1,310)	0	0
Net cash used in investing activities of discontinued operations	(5,761)	0	0
Net cash used in discontinued operations	(7,071)	0	0
Effect of exchange rate changes on cash	(2,252)	(1,382)	(332)
Net increase (decrease) in cash	(1,036)	17,932	9,887
Cash and equivalents, beginning of year	85,533	67,601	57,714
Cash and equivalents, end of year	84,497	85,533	67,601
Supplemental cash flow disclosures:
Cash paid for income taxes	5,914	3,372	3,775
Cash paid for interest	$ 0	$ 0	$ 0

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).