CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income from continuing operations	$ 10,967	$ 16,229	$ 24,251
Adjustments to reconcile net income from continuing operations to net cash provided by continuing operations:
Depreciation and amortization	5,042	3,644	3,809
Loss on disposal of assets	275	0	0
Deferred tax expense (benefit)	(6,118)	1,065	(4,332)
Stock-based compensation	2,587	3,726	6,117
Changes in assets and liabilities:
Accounts receivable, net	(39)	4,530	(10,315)
Inventories	(6,492)	(2,641)	(5,323)
Foreign sales tax receivable	(135)	264	1,600
Other current assets	(2,865)	77	186
Accounts payable	(1,460)	407	(1,569)
Income taxes payable	3,641	(1,589)	(113)
Accrued expenses	565	(207)	1,438
Current deferred compensation	(2,424)	(1,933)	0
Deferred revenue	6,787	(537)	2,169
Net cash provided by operating activities of continuing operations	10,331	23,035	17,918
Cash flows from investing activities of continuing operations:
Additions to property and equipment	(944)	(1,337)	(1,132)
Additions to intangible assets	(294)	(326)	(7,287)
Other assets	267	117	(64)
Net cash used in investing activities of continuing operations	(20,466)	(1,546)	(9,784)
Cash flows from financing activities of continuing operations:
Proceeds from exercise of stock options, net	114	441	153
Tax payments for stock issuances	(998)	0	0
Stock option tax benefits	3,318	0	0
Net cash provided by (used in) financing activities of continuing operations	2,434	441	153
Cash flows used in discontinued operations:
Net cash used in operating activities of discontinued operations	(306)	(974)	(1,310)
Net cash used in investing activities of discontinued operations	0	0	(5,761)
Net cash used in discontinued operations	(306)	(974)	(7,071)
Effect of exchange rate changes on cash	145	1,015	(2,252)
Net increase (decrease) in cash	(7,862)	21,972	(1,036)
Cash and equivalents, beginning of year	106,469	84,497	85,533
Cash and equivalents, end of year	98,607	106,469	84,497
Supplemental cash flow disclosures:
Cash paid for income taxes	3,121	6,005	5,914
Cash paid for interest	0	0	0
Alfa & Ariss [Member]
Cash flows from investing activities of continuing operations:
Purchase of Entity	0	0	(1,301)
Cronto [Member]
Cash flows from investing activities of continuing operations:
Purchase of Entity	$ (19,495)	$ 0	$ 0