Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income from continuing operations	$ 21,628	$ 7,631
Adjustments to reconcile net income from continuing operations to net cash provided by continuing operations:
Depreciation and amortization	4,675	3,487
Deferred tax benefit	(858)	(1,658)
Stock-based compensation	1,840	1,886
Changes in assets and liabilities:
Accounts receivable, net	(564)	471
Inventories	(5,777)	(7,151)
Foreign sales tax receivable	213	(268)
Other current assets	834	(2,023)
Accounts payable	2,473	(1,721)
Income taxes payable	(966)	3,371
Accrued expenses	3,602	1,095
Current deferred compensation	411	(2,348)
Deferred revenue	2,526	3,702
Net cash provided by operating activities of continuing operations	30,037	6,474
Cash flows from investing activities of continuing operations:
Purchase of short term investments	(64,916)	0
Maturities of short term investments	19,992	0
Purchase of Cronto	0	(19,495)
Additions to property and equipment	(1,212)	(480)
Additions to intangible assets	(112)	(186)
Other assets	(1,309)	307
Net cash used in investing activities of continuing operations	(47,557)	(19,854)
Cash flows from financing activities of continuing operations:
Proceeds from exercise of stock options	51	19
Tax payments for restricted stock issuances	(123)	(736)
Tax benefit of stock-based compensation	253	0
Net cash provided by (used in) financing activities of continuing operations	181	(717)
Cash flows used in discontinued operations:
Net cash used in operating activities of discontinued operations	(56)	(569)
Net cash used in discontinued operations	(56)	(569)
Effect of exchange rate changes on cash	(227)	318
Net increase in cash	(17,622)	(14,348)
Cash and equivalents, beginning of year	98,607	106,469
Cash and equivalents, end of period	$ 80,985	$ 92,121